Ones already mentioned...
Arrested Development
Better Off Ted
Not mentioned...
Veronica Mars - This actually had a pretty interesting story line, I got into it after it had long since been pulled off air and they should have kept it going. I know the whole teen girl detective may sound lame, but the show was well written, it knew how to take some good plot twist and worst of all, Gossip Girl is the show that took it off air for the time slot.
Titus - Huge fan of his comedy and loved bringing his approach to real life issues that aren't always talked about in sitcom form tackled. It got wiped out during the early 2000's during Fox's Swap & Cancel programming set up. Lasted for 3 seasons but should have kept going.