if bigger is better, get a large case, even if you don't fill it completely. You get big fans, like 120mm + 140mm. They keep things cool and at a lower noise. http://www.lian-li.com/v2/tw/flashpage/p50/
The SSD is nice for a server that needs high IOPS, or if you handle many small files, like the booting of windows. It's not needed for every day use. You're better of putting 2 drives in raid1 (2x1tb=1tb) or of you want less space lost, 3 drives in raid 5 (3tb = 2tb). If one drive fails, simply replace the failed drive at no data loss.
The 2 79xx cards are an aboslute overkill, unless you want to play the latest FPS or use them in mining.
edit: I connected a 40" full HD tv to my pc. You can keep multiple windows open, without things getting tiny. You don't have to look at the bezels of the 6 monitors and 1 40" tv or even 2, are cheaper or same as 6 monitors