I just wanted to thank everyone on here for all of the help. I couldn't have done it otherwise and I'd have to say that this is one of the most gratifying project i have ever done. I am not totally cleaned up with the install but it worked. That first test when I was begging for the computer to come on and hear the fan was awesome. So now I am going to go to bed I started the install on this at 12:00pm cst on Thursday and now is 6am on friday. Well I don't know cars too well. :-). So I'll leave my specs here and hopefully get everything cleaned up this weeked so I can post pics. Thanks all.
2002 Chevy Impala
Epia M10K - Installed in glove box
Opus 90w - Installed in glove box
120 gig 7200 rpm hd - Installed in glove box
7" lilliput touch screen - Sitting on console now awaiting a better place
Microsoft Streets and Trips + GPS - Passenger side front window
USB FM Modulator
Touch pad mouse - behind sterring wheel under gauges
Awaiting
Foldable keyboard behind visor
Hard install of monitor with bomber on/off switch in dash
Future
Rear view camera
ODB II
Ok well this is all I can think of now I need some sleep. But thanks for everything everyone I am so happy.