First, the Dell came with some horribly cheap card, but my brother wanted to game with me from home so I installed it for them. My 9800 isn't OCed at all, completly stock, been that way since I bought it. And yes, I was planning on swapping it out and see if it would run fine, thats a good idea. Though, its one of those "form factor" cases from dell, it may not even fit in there.
(so the tally is -1 Dell, -1 Shuttle )
I found that the .25 and newer versions did not play well with my 9800Pro.