Will a 3ghz dual core work in this motherboard??

I wouldn't chance it; the motherboard only has official support for Athlon and Phenom not phenom II and athlon II. It's an old motherboard. Although, theoretically it should work since the Athlon II will work in AM2, AM2+ and AM3. I would suggest you get a good AM2+ motherboard.

Fair enough. I've also been looking at the Gigabyte GA-M52L-S3P mobo and that seems to have AM2+ socket. Now I just need to see if the planned kit will fit in my stock dell case. So far it's not looking good. :S Cheers though!

look on newegg for your parts man.....

www.newegg.com

He looks to me like he's from the UK considering those were UK sites he linked.

oh they dont ship to uk?

Just to the US.

wow that sucks

They have a separate site for Canada, but nothing for the UK.