Want to change MOBO

[Praetor]

hmm.. I still say u should sell the Dell.. and buy a Athlon XP machine

Whoa!
1. AthlonXPs are (a) discontinued for the most part (b) obsolete (c) you can get a Socket754 for not much more (~$70USD)
2. An i865PE versus even the formidable NF2Ultra ... its not really much of a contest ... the Sprindale will outperform (as well as last longer) -- and this is coming from an AMD fan

cuz the only way ur gonna be able to upgrade ur dell (outside of dells upgrades) is to just buy all new hardware and put in the case.. which is kinda pointless.. id just buy a new decent runnin PC...

At the very least, just a new mobo and case/psu is required; anything else is really optional.

I believe ASUS makes a X800 and not a gforce 6800...

They make both.

Will that Windows that is prolly special for Dell work on another MOBO....it has extra software that wont work but I was wondering about windows since Dell is so proprietary

Not really. WIndows is Windows. Windows on a Dell is just Windows with some registry modifications. Its not bound to the hardware per se