Here's an option to consider. I don't know what games you want to play but you may find onboard graphics adequate. And AGP is slipping away with PCI-express taking the front seat in video cards. Buying an AGP mobo now may limit any future upgrades. I've used an MSI board for my last two builds with the same 2800 Sempron in a 754 socket. The one I used has an ATI chipset and has proven to be a very stable combo. I sold one and the second is sitting here running Folding @Home 24/7. This board is mATX and comes with a PCI-E slot in addition to the onboard. Check it closely, it has great specs including SATA/Raid. Newegg sells it for $91 including freight but you can get it at ZipZoomFly for $79. I highly recommend this one. Newegg has more specs listed but here's a link for both NE and ZZF.
http://www.newegg.com/Product/Produc...82E16813130513
http://www.zipzoomfly.com/jsp/Produc...uctCode=241177