Motherboard Suggestions For This Rig

Hi,

So... I've got a pretty good idea about most things computer related but I've gotta admit that Motherboards get the better of me. I want to replace my M3A-H/HDMI because it is proving to be pretty poor for overclocking and doesn't support multiple graphics cards. I've been trawling through the web and found tons of Motherboards but i don't know a good one from a bad one and want to make sure everything will work and that it's a real upgrade and not a sideways move.

Here's what I have so the board needs to be able to accept these components....

AMD Phenom II x4 995 BE 3.2GHz C3 125W
4 x 2GB DDR2 800 RAM
1 x Radeon HD 5770 (needs to have ability to add a second card in Crossfire)
Arctic Freezer Pro 7 Rev 2.
Antec 900 Case
Corsair TX650W PSU

I think that's all that's relevant but if you need to know anything else let me know. I basically want the best gaming performance motherboard that works with the above spec. I don't really want to splash out on DDR3 (yet anyway) and have a budget of around £120 but will stretch a bit further if it's really worth it. Onboard graphics not needed.

Any suggestions???