lol I love people who don't read.
Gah.. well I'd say go for a 754 board that has and agp and pcie x16...
But I'm always forward looking, I think ASRock makes a 754 board with both for cheap... that is if you like ASUS, but any good brand is better than a cheap, 'no-namer'
Hmmm I didn't know there was any s754 athlons higher than a 3200... cool if there are, guess I just pay attion to uber budget and uber not budgt stuff....
Well, you can get a gigabyte or MSI (pretty good brands) for bout $55ish
ASRock is a part of ASUS that makes budget parts, but I don't like either, tho they are a good brand
DFI's great but usually too expensive.
BioStar usually isn't good from what I've heard, but from what i've heard they did really well on the G6100 (mobo's with Nvidia's GeForce 6100 gfx chip as onboard video) but I can't speak for anything but those.
I'll assume you aren't a noob considering the above correction and the flashed 9600
If I were you tho, I'd buy a G6100 mobo and use the onboard gfx till you buy a pcie GFX card like a 6600GT or one of ATi's new x1x00 series. The onboard performs about as well or better than my Radeon 9200 but is way more compatible. It's entirely your choice tho, and as I said I'm crazy for future proofing.
here's a search of s754 boards w/ agp the above mentiond brands are the way to go.
s754 w/ agp
Here's the G6100 mobo I'd suggest, there's also an ASRock and a cheaper Biostar of the same chipset/socket type.
G6100 mobo
hope you could understand me, I'm pretty confusing.
Hope that helped.