It's a definit no as far as I can tell. Would you really want an Agp mobo in Oct? Would you want to buy an agp graphics card in Oct?
Best option right now would be to pick up the radeon 9800pro with 128 MB of ram at <A HREF="http://shop.ati.com/tradeup.asp" target="_new">http://shop.ati.com/tradeup.asp</A>
and save the rest of the money till Oct.