Yea Durarara is the one with the dollars. I'm on episode 15 cause I watch it in a club and we watch 5 episodes a week. Gurren Lagann is good or at least i like it, it involves mechs and I HATE mechs but I still like that show. Tegami Bachi I've only watched 4 episodes of cause I promissed Eric i wouldn't watch it without him, and I like it mostly because of the art. Trinity Blood is the one with the Vampires and Abel Nightroad, the guy who eats vampires, it used to be on Cartoon Network. Kemeko is a random one i found that had a lot of viewers. Maria Holic is a gender bender yuri-ish thing so you prob won't like it. Arakawa is just ranom and funny but has a plot. There's also Rozen Maiden which is popular but I've only watch 1 episode and it didn't really catch my eye.
http://myanimelist.net/ look up animes you like on that website and they can give you suggestions for other ones to watch. Plus you can join and make a list of all the animes you've watched.
This is what I've been watching lately.
Arakawa Under The Bridge (2nd season)
Tegami Bachi (aka Letter Bee)
You might enjoy the 1st two and maybe Kemeko (it's kinda like FLCL in a way but not as random) and maybe Tegami Bachi (I love it except for the whiny boy in it). Have you watched all of Trinity Blood? That was good.