Also, will older games still work on a quad-core? That's one thing I'm worried about.

As for money, I gotta save for it first, so looks like I'll be waiting 'til ATLEAST March/April for a reasonable amount...But for £1400, will be about *opens calculator* actually, it works out to about that.... April/May time.

I have 2x750gb HDD's, so that'll reduce the cost a bit too
Minus the keyboard, monitor and mouse too, but I need a decent set of speakers/a decent headset. Prob headset.
I already have 2x1GB sticks of Kingston Value RAM, recommend upgrading it?

Cheers.