See what Jeff Atwood has here. Of course, he has been green with envy :P
I myself just bought a 20" Samsung SyncMaster 206BW. I'm yet to hook it up but mutliple monitors are of no use unless they are all the same height. At work I use a 20" CRT with my Dell Precision laptop docked in. Keeping Outlook open there is the only constant. I hardly use it otherwise. VS.Net 2008 seems to have better dual/multi monitor support. Regards, Vyas