dell 1600sc server

Hello all, I recently purchased a dell 1600sc file server with the xeon 2.8 .. My intentions were making this into a gaming server. can somewon give me some advice. it has 03 server on it,, so far I cant get any internet connection on it. Should I plug the ethernet into the integrated ethernet or the network card thats in one of the slots. I did disable the security in IE.

I know these things have some issues with video cards. Anyone know of a good video card that will go into this without any problems?

my intentions were to upgrade the video, add another stick of ram and get a second processor somewhere down the line. and pretty much just use it to host a few games i play.. Thanks alot for the advice on what to do with this thing other than heat my room with it,lol..

mark