Yaoi Recommendations

It occurs to me that we don't have much of anything really in the realm of yaoi manga represented in our library collection.

My knowledge of the field is rather small, mainly due to my lack of personal interest (pretty much the only yaoi I've read to much extent is Banana Fish, which I think is actually more likely considered shonen-ai). I could surely pull some titles out of the latest Previews, but I don't really know what is considered to be 'the good stuff'.

So, I'll turn it over to readers of this blog: can you recommend two or three yaoi manga that would serve as good representations for our collection?

Please use the comments of this post to give me your suggestions.

Thanks!