Stay AWAY from the MSI board!
I personally have the MSI K7T266 Pro2-A, and it crashes on games within minutes, and is the reason I can't use my Audigy 2.
I have no experience with Epox or Abit, and you can get a mobo faster than a 266FSB easily, so the only one I can recommend is the Soyo Dragon.
But you CAN get an Nvidia nForce2 board for less than $100 now, so you can do what i'm about to do and get one of those.
Nvidia = sex