Lupin, thanks for the info about Bobcat CPU (didn't heard of them till now) - will look into it and thanks for link - there is ALOT of builds with all things needed. To bad I can't get more than half of those items in my local/country wide stores - but I like to check them.
Freedom Kira, i know that atoms have a lot of credit

I really don't need my NAS to play 720p thought - the problem with them is there is alot of atoms with 2 SATAs less with 4 SATAs and almost none with more. Vuze ain't lightweight. And there was a news some time ago about releasing new ATOMs CPUs in near future - would need to look into it
kitamesume, i like the idea of that frame and PCIe Sata cards - but i would prefer to have few SATAs on board at start

. I will definitely go for 2nd hand

. You call core2duo old ?

What about still working Celeron 333Mhz ?

. athlon II X2 - I dont think it's ECO Energy compatible

the lower power consume the better - so Atom or Bobcat. Sandy Bridge is a little overpriced - mobo + cpu, but probably the good choose for future NAS.
datora, nice thing you found there - the SSD in RAID on PCI-e, little to much

but the speed need to be amazing, 3 sec boot ?(joking, 5

). You gave me alot of really useful info there, and I'm thanking you. About SAMSUNG F4 HD204UI, they are nice hdd's but some time ago I posted topic about having problem with them on two different setups - I think it's all depends on SATA controller.
bork, all of my old mobo's are PCI without SATA one ;P - thanks for tip
I read your replays before at work but didn't have time to post them. Thanks a lot, if you have more great ideas please post, I will be happy to read them.
I will look into those page's you recommended me and those cpu's / sata cards you posted guys.
Thanks, Mike
Edit: s@#t I just fallen in love with Rack cases for HDDs - damn you, damn you all
Edit 2: are there RACK Cases for HDDs that ain't SCSI ?

Not really right? racks are for servers, servers use scsi... // few of them are event for SAS ~ and SATA ~ darn you... but sooo sexy..
Edit 3: I "like" how I see the price at NewEgg, then, at my story, then on newegg, then at my store and I see twice much at my store, It would be cheaper to buy it from newegg and ship it here, but they dont ship here...