Onegai Teacher is awesome!! ^_^- I've yet to see the anime but have read the manga and the special book they put out ( special scenes and stuff ).
I love that anime. Love Hina, Hellsing, Trigun, Blue Seed, Outlaw Star, Fushigi Yuugi, Ayashi no Ceres, etc. To many to name to be honest. ^_^- I love anime.