I purchased a Canon Pixma 640R for work and was so impressed with it that I bought one for home. I also purchased 2 more for my boss and another co-worker.
Any of the mid-range Canon Pixma line would be a good choice I think. The reason I picked the model I did was because Best Buy had them on special for $99 (half off, regularly $199). Part of the reason for this might be because it's red, hence the "R" in the model number. I didn't care what color it was as long as it worked. We have been using HP's throughout our office, but they seem to be getting cheaper and cheaper each year.
Prints excellent quality pictures
Adjustable print quality to save ink for office documents
Separate ink cartridges. Replace only the one that runs out. There are 4 smaller tanks for black, yellow, cyan, and magenta. These are dye cartridges for printing images. The 5th one is a big, black pigment tank for documents.
2 paper feeds. One is a tray underneath and you can also feed from the slot in the back.
Wireless was EASY to set up. I have this on the corner of my desk with just a power cord running to it. I can print off any of my computers wirelessly.
Good form factor. Stays closed up until you send a print job, then it opens up automatically.
There's a lot of other things I like about it, but I don't want to sound like a commercial...
I don't really have anything bad to say about it yet.
Just my 2c worth...hope it helps,