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This might be worth considering for your hard drive solution:
HITACHI 0Y30055 500GB 5400 RPM 8MB Cache 2.5" SATA 3.0Gb/s Notebook Drive
$79.99 - $20 off w/ promo code EMCNHJN22, ends 2/16
Advantages:
- reliable brand
- low energy
- low noise
- in a desktop, almost impossible to destroy
- about as cheap as it gets per GB right now
Disadvantages:
- 5400 rpm / low speed: "only" SATA 3.0 GB/s
- low cache (8 MB; 16 MB would certainly be preferred)
- "only" 500 GB
- was $49.99 just a few weeks ago
- creative adaptation to 3.5" bay might be necessary
The thought here is to keep your costs low for budget build for your immediate purchase, either to save the money or invest it in higher end hardware elsewhere in the build. For example: what would an extra $50 buy you in CPU capacity?
The intention would be that this drive is slated for an upgrade "when possible" in a few months. You get your whole system built & running immediately, and it will do everything you need that I can determine from this topic. At SATA II speeds on SATA III compliant mobo, you will have quite a perky system overall. Yes, you would suffer a bit on higher end games, or some other disk-intensive software ... but you've not mentioned anything that really requires a 7200 rpm/ SATA III drive. Apart from some increased Win7 performance.
And, frankly, slightly slow Win7 performance is something you could survive for 3 or 5 months while shopping carefully for a better drive. The system you are considering now from the above specs is going to perform quite nicely, unless you mention said software that is disk-intensive.
Upgrade path: I already recommended an SSD. I repeat that recommendation. Yes, there have been a few that are not reliable, that's what reviews are for: to locate those models and avoid. There are other models that are reliable and blazing fast; careful shopping over a period of months and you can find one of those at an affordable price.
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EDIT: ShellShocker just went up:
OCZ Agility 3 AGT3-25SAT3-120G 2.5" 120GB SATA III MLC
$142.99 - $30.00 rebate for 120 GB of SATA III SSD. Reviews on this model are pretty solid; many of the eggs off I'm seeing are from absolute whiners pissing their diapers that a 3.5" to 2.5" drive cage plus SATA cables aren't included. Boofuckinghoo.
Admittedly there are the usual more serious complaints, but they're relatively few in the overall pool of reviews. Not suggesting you Buy It NAO!! but it is an example of what is possible when keeping an eye open.
I like the performance numbers a lot - especially pay attention to the sustained throughputs:
Sequential Read AS-SSD: 195 MB/s
Sequential Write AS-SSD: 130 MB/s
with burst rates up to 500 MB/s plus (on SATA III).
Also this:
2,000,000 hours Mean Time Between Failure (MTBF); it's at the top tier, often these are 1.5 mill or 1.2 mill.
These are the sort of stats you would look for in an SSD today; they're hard to beat. I'll bet this one is sold out in about an hour or two. ]
Alternatively, again looking for bargains, try to snag one of the Seagate Momentus hybrid drives that use SSD technology & smart caching to enhance a 7200 rpm platter. They still are "only" SATA II (in the affordable range), but a 250 or 320 GB one of these could perk up your boot/OS experience a good few percentage. My caution on these is that I'd carefully check reviews on specific models; there have been reliability issues with both Seagate products and with specific Momentus models. However, I've also seen certain of these models garnering very solid reviews.
The Hitachi drive then becomes the (or "a") data drive on your system, or you can buy an external enclosure (USB 3 recommended, often in the $15 range) and have it as lightening fast portable data storage/transfer. BTW, I have a 250 GB Hitachi notebook drive using the SATA I (1.5 GB/s) spec in an external case. It's been in service as a USB 2 data drive for close to five years now, and performed service as the boot drive for a WinXP/Ubuntu dual-boot desktop system for about 6 months in the middle of that time. As of last month, according to various analysis utilities, it is about as healthy as the day I bought it. Currently stores ~200GB of anime that I've watched and archives a lot of old(er) utility software, so it's effectively a "read-only" device right now when-needed.
Of course, you can also watch for drives in the Western Digital Caviar Black class to come on special, and (hopefully!) prices are finally dropping on those and something far more affordable will come along by about July. The path I'm suggesting here buys you time to shop aggressively and carefully, meaning you might spend a little more at the end of it, but have more/better options at a Very Solid price/GB at the end of it, also.
So, just for imagination, let us say that you use the Hitachi drive + an SSD: your power supply requirements are reduced by a significant handful of watts ... so something like that 380W EarthWatts starts looking very tasty, even at it's premium price.
By The Way, I have an EarthWatts 620W (not "ecogreen" as I stated above), which I got for a ridiculously low price by stacking special + rebate ... so wait & watch carefully for a good deal. You should be able to do better than the ~$47, I'd certainly think ~35 or under delivered.