Read some reviews on the net, Tom's hardware has some, anandtech too.
There is a website called socketa.com that reviews and comparers motherboards.
Epox is good, so is asus, abit, and microstar.
I have the microstar k7tpro2-a and it is great.
I have built computers using fic az-11 and the asus board.
Both worked fine the asus board is better though.
Anyway read the reviews and pick one which meets your needs, and budget.
Bob