This is an old post, but I've been away.., so replying nevertheless.
I caved in and built me a i7 system with 160GB Gen2 Intel SSD, and I have to say that it runs very smooth and not to forget: without a sound whatsoever. Compared to my previous old OS disk, raptor 30GB 10.000 RPM, its a bliss.
For OS games and programs, I think its size is ok, but I look forward to maturity on the SSD arena, GB/cost and quality-wise. Pondering whether to get a internal 1TB'ish disk HDD as additional storage, although I got a 500GB external. It would make sense I guess.
Also got me a GTX 285, although I'd perhaps be better off with a Radeon 5870(?) or something.., but I figured I'd go for a full Intel setup, as Nvidia = intel?

, ok its not, but its more intel than AMD Radeon,(bold statement maybe), and besides, its rumoured to have better AA (antialiasing), which according to a italian friend, (and Nvidia fanboi), matters a lot. So there you go.
And hi btw! For those who remember me. Apparantly I didnt relocate to a mountain cave to find myself after all. Rather I'll go to South America to start a revolution this summer, so if you have any hot tips on places to go, let me know!