Dr Horrible is awesome!
Seriously, you need to go watch this! It's free, but only for a limited time! (Acts 1 & 2 are already up, 3 goes up THIS SATURDAY, and then on SUNDAY, JULY 20th, they come down (at midnight). SO GO WATCH, it's super funny and awesome! (and it's by Joss Whedon, which should really be the only reason you need) GO GO GO NOW NOW WATCH IT!