You might check out the Brother HL 50x0 series; I've heard very good things about them, and they start a little above $200.
I've got a HL 5070N (the network version) that I'll be setting up in a couple days, so I'll know firsthand how well that model works soon. Seems to have mid-sized office-class features for $450, though--it's network-ready, Rendevous equipped, and high speed.