Since we don't want to put the cart before the horse its best to decide now if you want to upgrade the entire system or just add in a card that will work for now. AFAIK the 9600's you have now "should" run the monitor just fine, you probably won't get the best resolution but they might work.
If you are just trying to add a card to the current set-up you'll need something AGP based.
Posting a budget and/or deciding if you want a full upgrade or not is the best place you can start.
__________________
“Every question involves someone having to work for an answer, isn't it about time you did your share”
"Non-technical questions sometimes don't have an answer at all."
Linus Torvalds |