I bought an AMD 1800 and ECS K7S5A a month ago and have had nothing but problems since. I want to go back to Intel and get a P-4. I also bought Crucial PC2100 DDR RAM at the same time. Obviously, I don't want to upgrade the RAM again already already, so I'd like a mobo that runs DDR. I guess my inclination is to get a 1.8 gig since I've heard those are the most overclockable. I see on Mwave.com that there's a 1.8G and a 1.8AG. What's the difference? Any recommendations on a pc/mobo combo that works with my memory would be highly appreciated. Thanks.