I've just started studying bak mei/lung ying about a month ago.
definately my favorite over any other martial art(s) I have studied.

I have seen a little bit of wing chun.

I've heard that it is similiar to wing chun as well. I think some techniques are similiar. The vertical punch, tan sao and a few other things are I think the same.

Bak Mei seems to make pretty heavy use of the phoenix eye and ginger fist (the technique not the dude on this forum) also. which would be different than wing chun.