I must have missed where the choice was a 1.2 Duron or a 950 Athlon. In that case, I'd probably take the Duron because it should be faster in more situations. The Athlon might be faster for some things, but overall I think the Duron would be the faster choice.
Video card memory... I did a...
I have that same motherboard. Basically untouchable for the price.
An Athlon is roughly 10% faster than a Duron *on some things*. Most times you probably won't notice a difference, but for pure processing power for 4 bucks more, certainly get the Athlon.
One thing about what cpu to...