Looking to upgrade my computer in the next week or two. Current spec;
AMD BE-2300 (1.9GHz Dual Core)
Biostar TF560 A2+
ATi x1950 XTX
4GB PC2-6400
New spec;
AMD Phenom II 720
Asus M3A78-T
Same RAM, just need a graphics card. I'll be running it on a 19" monitor for the most part, though i'll probably look at hooking it up to my Plasma for 1920x1080 gaming (tried it once, didn't like it but i'll have another go). I'm most likely buying from Overclockers as they have pretty good prices on the CPU and Mobo and are just up the road.
I'm not sure i'm interested in Nvidia cards, i'll be hooking it up to the TV for media centre features and prefer the single-HDMI cable solution ATi have. That pretty much leaves me with the following choices;
4850, upgrading to Crossfire at some point down the line
4870 1GB - unless something dramatically changes in pricing Overclockers charge way too much for the 512 making the 1GB the clear choice between the two
4830 Crossfire
Price-wise i'm looking at £110-ish for a 4850, £170-ish for a 4870 1GB and £160-ish for two 4830's. Prices will likely have all changed by the time i get round to buying though...