+1 for the HP Wireless all-in-ones.
I have a C4380 which is an older model, the C4680 is what is around at the moment in the rebate offer and I can only imagine it's as good.
Some people say they've had trouble setting these things up well, my C4380 has been a dream. I've set it up on two Windows laptops and my iMac and it was all easy - the iMac was actually by far the best which was nice
You can scan wirelessly, print wirelessly, and photocopy things. I can't tell you how much of an asset this machine has been to me during my first year of University. I scanned in some pages from books so I could return them to the library quickly, I've photocopied some forms, and of course, printed many many things.
My favourite thing about these printers in particular is the ink cartridges. Cheaper printers invariably come with smaller cartridges, and you can't get "XL" carts. On mine (and the C4680, I checked), you CAN get an XL cart and the difference is immense. In the UK at least we call them the 350 XL and 351 XL - the difference in the black cartridges is 200 to 1000 pages (and nowhere near five times the price of course).
So whilst I appreciate you don't want to spend a lot, believe me, if you spend more on the printer you will reap the rewards when it comes to your cartridges. The really cheap printers just have those smaller capacity cartridges and you end up spending way way more on ink. (For me I spend around £20 on the higher capacity black cartridge, the lower cap is about £12. I'd have to buy four or five lower cap cartridges though depending on my usage to get the same yield, so it becomes £20 vs £50-60..)