[Kitten]

I agree with Sephy that Haru wo Daite Ita is lovely to watch! It's very cute and I think you should watch it just for feel good reasons.

Ai no Kusabi is a little extreme. But well worth it if it's your cup of tea! (It's mine!)

Enzai is not for the faint of heart and again. Cup of tea and all that.

I would venture to say that Okane ga Nai is along the same venue. But much cuter and tamer. Though with the same kind of vein running through it.

There is a series called Kyou Kara Maoh that is delightful but is very mildly yaoi. Watch it for adorableness if nothing else.

In that thread is Tokyo Babylon, a CLAMP creation with obvious yaoi undertones but not too very much sexy service. Also X/1999, a sequel of sorts with the same problem. Obvious undertones, no delivery. CLAMP! >_<

Totally Sensitive Pornograph is delightful for someone looking for a good time. ^_~

There is one called Blue Wolves or something the like that... is scary. In an Enzai way but only a tenth as bad!