quad core?

So im building a new computer soon and i need your advice. I have up to £1200 (english pounds) to spend on the base unit, im going for the following:

750 gig hd space min(seagate)
2 gig ram, corsair ( speed dependant on remaining cash)
320 gig 8800 geforce probably

The real question is should i go for a quad core? is it worth spending 500 pounds on it or should i stick to a nice dual core.

It would cost over 300 pounds for the 2.67 dual core (intel), for 200 pounds more i could get the 2.4 quad core, then it would  still be an above average system in 3 years time.

Also, if i waiting a few months, would the price come down a lot?

Note: System will run linux and all the hardware i have looked at is supported.

>>4

E6600 hits 3.2 on air easy.

>>1

Wait until April 22 or you'll be kicking yourself in the ass.  Price drop in twelve days is the CW on the streets, kids.  If you're using Windows, aren't doing video work or heavy-duty coding, go dual and fap at the speed of sound.  If you're doing a lot of heavy computing, or running Linux, go for the lower-priced quad and fap at over 9000.