You should be able to get a decent laptop for $800.
I'm with you on the gigantic computer desk Pat. I told the movers they could "lose" my desk when they moved us, but they didn't. We still have an old desktop for the kids, but I use the laptop most of the time. Problem is, I haven't been able to get my secure wireless network set up right since we moved. I'm not much of a networking guy, so I get into trouble trying to make that stuff work.