meh, there good for multi tasking, but id personally just get the better 'single core' processor, unless u can afford to spend loads then feel free. just checked out the prices of stuff online (ebuyer)

duel core

Athlon 64 X2 4600+/socket 939 2.4ghz 512kb + 512kb Cache
£562.63 inc VAT

(the only duel core processor they do) i take it that theres 2x2.4ghz there.

normal

AMD (Clawhammer) Athlon 64 3700+ 1mb L2 Cache 754pin Retail Boxed Processor With 3 Year Warranty and Fan Included
£165.26 inc VAT

is it realy worth the extra £397.37???