In the past, I used a D-Link 1522 for this. Bonus points that it gives you four jacks rather than one, so you can connect a bunch of stuff like your printer. (Warning: they claim it's dual band. It totally doesn't work at 5GHz but works fine at 2.4GHz. The newer versions might be better at this, but I wouldn't count on it.)

I'm waiting for the 802.11ac stuff to get out there in volume (e.g., shipping from Apple), then I might make the big switch.