I'm very pleased with my Samsung CLP-610ND duplexing color laser printer. It's *gigantic*, but the quality is great, the toner cartridges last a long time, and I managed to find it new for $200 late last year. I wouldn't expect to see it at that price again, but if I was shopping now and saw it for $350 or less, I'd jump on it.

Adding: Okay, it looks like the successor to the CLP-610ND is the CLP-620ND, which is available for $299 from TigerDirect here. Even better, you can get 12% cash back if you sign up for Bing cashback and search for the printer through Bing's cash back page.