If I were you, I'd go for an Xbox 360 premium + GTA4 which can be had as a bundle for £189.99, plus a VGA cable (£15-20?) and play on your existing PC monitor in HDYou'll get a free month's live subscription etc too.
Total price?Well after much thought I bought an HDTV yesterday, Sony Bravia 40", 1080p, 24hz true blu-ray play back, 16:000 contrast ratio. Pre-ordered a PS3 40gb with GTA IV picking it up Tuesday morning.
RoEy