Apevia X-Cruiser Thermally Advantaged Case - Silver
XIGMATEK Intel Core i7 compatible Dark Knight-S1283V 120mm Long Life Bearing CPU Cooler
Last thing to purchase is a video card.
As I mentioned, this will mainly be a Linux desktop server.
I do plan on some gaming under Linux / wine.
I'll be using this computer extensively for FFT, Monte Carlo simulations, stock market correlations, and other areas of computational finance. I'd like to investigate doing my calculations on the GPU (GPGPU / CUDA).
Lastly, I'd like to be able to display movie files (e.g. avi) on my living room TV set.
I don't mind spending a little change, but my upper maximum would be about $500 USD.