My motherboard recently died and I'm having trouble finding another mid range P67 board. Should I be ok using a Z77? (they're pretty cheap) I won't loose USB 3.0? Will I be able to run 2 cards in SLI in the PCI-E 3.0 slots (i'm not currently running SLI but is a probable future upgrade... if I get a job i'll probably just buy an Ivy Bridge i5 k series).