Think that's also been done, but it's more than funny enough to merit a repeat.
Just for grins, here's the webcomics I visit each day:
http://www.nuklearpower.com/
http://www.achewood.com/
http://www.penny-arcade.com/
http://www.pvponline.com/
http://www.questionablecontent.net/
http://www.reallifecomics.com/
http://wapsisquare.com/
The best of the lot, in my mind, are Achewood and Questionable Content.