A little help and advice please?

Over here in the UK were definatly not getting any G0 CPU`s for sale for a while yet, so all our quad cpu`s are B3 still..
Ive bought an entire rig to build! with the exception of the CPU... the last thing i need and i was pretty certain about buying the Q6600 after the price drops...
Over here the Q6600 can be had for around £170....... but after reading about this x3210 cpu i did a little searching and managed to find somewhere with them for £145... i know its only a £25 saving..... and tbh im not to botherd about saving money i just want the best chip out of the 2.... so which would u reccomend?? both will be B3 cpu`s... should i just go for the Q6600 or try the X3210?

i know the X3210 is clocked lower at stock... but i assume that they should both overclock to pretty much the same ? i bought a 120 extreme HS to help with the cooling .. and 4 gig of PC8500 ballistix so high FSB wont be a problem .. also a P5K deluxe mobo...

please help? never had intel b4... plus been a while since i did any overclocking... last time was with my old xp2500 mobile cpu