I've been researching to get one as well. This one was recommended by two of my friends (who uses all four functions quite often in their part-time jobs) and the Consumer Reports.

I have this Canon and I'm really happy with it. It doesn't install a bunch of bloat-ware on your computer too. So far though, I think it uses a fair amount of ink so plan on replacing ink cartridges somewhat frequently. You can find it on sale for around $130.