All-in-one printers seem to be a popular topic here this week :)

I recommend the Brother MFC-440CN. As I've said before, one of the best features about this guy is that it comes with built-in Ethernet networking. Great for when you want to share your fax/scanner/printer with the whole house.

The only drawback to this model is that it uses inkjet carts. However, they are relatively inexpensive (about $11) and last a long time. I've had mine for months and couldn't be happier.