Im looking to get a new computer for work. I have to go thru DELL and am on a limited budget (~$1000). I'm basically looking at the Vostro 200, 400, and Optiplex 330. Is any one of these better than the others? I've customized them about the same way for each. But i wasnt sure about the guts of these things. Right now, im working on a Dimension 4700. Are any of these comparable? It's about 3 years old, so i think any NEW system is going to run better than what i have now, but im not sure. I do alot of graphics and video (i know these aren't the best systems for that but my 4700 has worked out ok) and i'd be upgrading the video card on my own so that will help. Thanks for the help in advance!