Re: GF 4 vs FX 5200
If it's a second hand 5200 with a 128bit bus, then it's a card able to reach 7000-7500pts in 3DMark2001. With AA applied it's quite faster than GeForce4 cards, plus it's a decent performer with PS 1.1.
Forget about the DX9 stuff, though. It does not have the computational power to run "Dx9 titles" at a decent framerate.
If it's a 64 bit 5200, then it's as Saturnotaku says
Pentium Dual E2180 (2GHz, 200MHz FSB)
Abit L95C (The one and only mATX with dual PCIe slots!) + 2x1 Geil Black Dragon PC6400
XFX 9600GSO 384MB
Little freak wonder