I'm running a Lexmark Z22 and I am very pleased. The drivers work effectively, the printout is the best you could expect from a printer in this price range, and the noise level is very low. I haven't had to recharge the cartridges yet but they are big, especially compared to the piddly little ones you'll find on the equivalent Canon.
Speed is not usually what they claim it to be, though, and the printers usually don't ship with the black cartridge, but only with the colour cartridge. Also, they usually don't ship with a USB cable, either.
Colour realism is actually quite good for such a cheap printer.
I have owned HPs, Canons and Epsons, and each has its own shortcomings:
Canon's budget printers have ludicrously small ink-wells and they seem not to care about Mac or Unix users.
HPs are cheap to run and quiet, but tend to fall a little short in print quality.
The Epsons are good all-round, but quite noisy.
The Lexmarks, however, make the best budget-price printers you could hope for.