mobo upgrade

[sailpog]

ok so i want to upgrade my mobo so it supports sli .I also want it to be able to support my ddr memory . And to be able to upgrade to dual core proccessers . On top of all of that i want it to be cheap. I am doing this because my current mobo only supports s754 proccessers . I have Come up with this mobo :
http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=293094
is it the best for what i have said.Also what would be the best proceser to go with this for under £150.