The SSD is definitely something I wasn't sure about, since I haven't previously read up on those. Part of the reason I went with a 240gb drive was that I like to have a lot of different games installed at the same time (laziness on my part, admittedly). Between the OS, games, MS Office, and a few miscellaneous apps, my current boot drive has about 167gb used; I'd rather spend a few extra bucks now than shortchange myself later on space. (I won't be getting rid of my current PC, but it will instead become a secondary / backup machine.)
After a night's sleep, I will almost certainly skip getting another HDD for now, at least until prices drop. Originally I was thinking of getting a 2tb internal and possibly ditching my externals, but it's really not a necessity. I have an existing 1tb internal I use now for torrenting, for my personal data, and for storing some anime I share on my lan which is mostly full, but it is still good enough for the time being. Obviously I have more reading to do on the SSD. I definitely do not intend to torrent to the SSD. I looked a bit at the Crucials, then took a guess and went with something else. Thinking that this would be a good starting point to look at when I get the chance later:
Crucial M4 CT256M4SSD2CCA 2.5" 256GB SATA III MLC Internal Solid State Drive (SSD) with Transfer Kit Video card-wise, I admit, I completely forgot about the Tis, thanks for that, I'll go with kitamesume's suggestion on that.
Case-wise, I've generally stuck with mid-towers but I'm thinking I want to go with a full tower this time, just for ease of working in the thing. I watched the video for the HAF X tower, and I liked what I saw, which is why I went with that. Convenience is more of a concern for me than money, but I'll look at some of the mids anyway to see if there's anything I like.
Thanks for the input so far, folks!