I too am looking for an integrated socket-a mobo.
Ive been looking at the Soyo SY-K7VMM.
Has integrated sound and video and is micro-ATX form factor.
Fraid havent seen any news on the net on this mobo, but have emailed my local Soyo dealer regarding when this mobo's going to be available and how much its going to be.
I'll pop some info up when i get a reply from them.
Hope this helps,
rockhard =)