» Tue Jan 18, 2011 7:10 pm
You'll need at least DDR2 RAM if you want to game on your PC.
No PCI-E support means that the rig you have is pretty much a lost cause, as has been stated. Go for at least Core 2 CPU support on your new MoBo (along with DDR2 and PCI-E), but if you have the cash, try for Core I support (although in reality, Oblivion doesn't really care about CPUs above Core 2).
Cheap GPUs range from the (as stated) Radeon HD 6850, but you could probably find some decent listings on a GeForce 8 or 9 series now ($80.00 on an 8800 GT from Amazon, for example, which is the card I have and it's never let me down once). They're a bit old, but I know you can count on them for a nice smooth Oblivion experience, even when you weigh it down with lots of hefty mods.