£2k spec please

[Masterdog]

Hey all,

I'm looking to build a new rig for about £2000. It's been a while since I've upgraded and I'm a bit at sea with current components available and what goes with what, so I just want to see what you chaps can come up with, if that's okay.
I need everything except a monitor (my monitor goes up to 1680x1050, so no need for SLI 8800's). I also need to fit a router and Vista in the budget. I use my pooter mainly for gaming, movies etc.

Thanks in advance,

MD

 

[Masterdog]

Wow, thanks for the help guys...wasn't expecting so many replies in such a short time. I'm an FPS gamer mainly, and will be getting Crysis when it comes out.
A couple of other questions...I was thinking of going quad core, but the price difference seems to be rather large and no games are making use of it yet (although I know Valve are talking about it). I don't do any other CPU-intensive tasks to make it worthwhile either. Nonetheless, I don't know how soon 2 extra cores would show their worth.
Also, 4gb ram = worth it or not?