By saying growing roots I mean it's old as dirt. Well, it's not that old, but if you want the full capabilities of a fast proc and mobo, then you should try to get ram that will run at the same speed as your FSB. By doing that you will have faster data transfer between the proc and ram, making your system faster.
There is a new interface that is coming out, but I have no idea when...It's called PCI Express and will replace AGP and PCI. The "AGP" version will be able to handle data transfers of 8GB/s and be able to handle a lot more power, getting rid of those darned power cables coming off the video card. But like I said I have no idea when that standard will come to be, and if you ask me, they will probably phase it in like they did AGP. Card manufacturers will probably make a PCI/AGP and PCI Express version of cards, and then eventually stop making the former of the two.
Hope I didn't offend ya with that old as roots saying, just trying to have a little fun so I don't die too early (smoking's helping with that already...).
If it was me, I'd keep that A7V8X, because even switching to an nForce2 board you won't see much of an improvement. But some people are picky and 2 more 3DMarks makes a difference to them, it's just I can't notice 1 more fps in a game with my dull human senses. It's your call man, but stick with that ASUS if it's not giving you any problems. That way you'll have money to buy that mobo in the future that uses a built in wireless cold-fusion power supply, built in GeForce SUX 19000, and wireless holographic monitor so you can just meet the minimum requirements for Doom 4.
Take it easy, and if it's easy, take it twice...