For the last week, we've been using the HP Officejet 6500 E710 n. This thing is awesome.
Optional dual sided print. Wireless. Power saver. Color/Black and White. Simple paper loading. So quiet, my wife was in the room when I was printing and didn't even know it was operating. (Unlike that Lexmark, which groans and rattles whenever it runs!)
And, of course, it scans, copies, faxes. And accepts direct-to-print email. And (I think) accepts a USB input, too.
We are very glad that we got it.