Bleach-Yoruichi turns into a cat Maria-Holic-RA is a catgirl Gintama-Has a catgirl, plus a cat that they keep trying to catch Fruits Basket-Kyo turns into a cat, plus always has cats following him FMA-Al tries to adopt a cat
Darker than Black - one of the main characters is a black cat that talks. Loveless - most ppl have cat ears and tails. Bakemonogatari - one of the main characters (the one with the glasses, forgot her name), has a turning into a possessed cat problem that happens in a couple eps closer to the end of the show. Furi Kuri (aka. Fooly Cooly, FLCL) - The main character has a fat cat that doesn't do much, and Mamimi saves a stray kitten in ep 2 that sticks around. Shiki - one of the guys has cat ears. At the end of one of the early eps of Canaan (3 or 4 I think) there's a sexy lady in a cat suit. ... that's all I can think of atm that hasn't been mentioned already.