My $.02? What are you going to be doiing with this thing? You can drop a step in proc and cut your RAM in half and still have a butt kicking system with at least $300 more in your pocket or to spend else where.
However is you do alot of video, audio or image editing or just want a gaming system built for the future, the 3500+ and 2 gigs will come in handy. I like your choice in mobo also. If you ever decide to drop in an 64 FX series, you're good to go.
I'm a ATI fan, but I'd definatly say get the 6800 over the 9800. I don't think you'll see much difference between the GT and the Ultra except a few frames and $100. With decent cooling you can OC to Ultra clock speeds anyway. The GT has got to be the best buy in vid cards right now.
You see I'm all about not paying premium (latest thing) prices but stil getting close to it's performance. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif