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are you set on AMD?
are you overclocking?
what is your budget?
dont you also need DDR2 ram for an AM2 socket CPU?
if you want the AMD root, then what you picked will be a good upgrade for that price.
if you want to go intel (awaits curses from AMD fans and praises from intel fans)
then you could get a e2180 and a p35 chipset based MB such as the IP35 by abit and it should overclock up to 3.0GHz+ (well many fellow OCUK forum members have) your choice of MB will save you money.
If you wish 2 stay with AMD i would go with this MOBO
http://www.overclockers.co.uk/showproduct.php?prodid=MB-142-AS&groupid=701&catid=5&subcat=806
as it a class mobo and it supports the new phenom CPU