SMC 1244TX (aka EzCard 10/100) $14/lifetime warranty (Realtek) 3Com 3C905B or 3C905C, with or without LAN wakeup $60 The 3Com board is probably better for Beowolf clusters, but for casual use the SMC board is fine. Probably any PCI board is as good as another for casual use these days. Go to a PC show and pick up a couple for $5 each...