Best board for core i3

The best H55 series of motherboards are made by Gigabyte imo.
Google H55 mobo reveiws from the last year and a Gigabyte model will be the winner in 99% of any review roundups i've read.
This is an excellent budget board that overclocks very well and has an easy to use bios.
GIGABYTE GA-H55M-USB3 -$109.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128429
If you want to xfire/sli i would suggest a i5 750/760 and a P55 BOARD.