You should try Unholy Darkness mod. It has combat-feeding and many other features similar to Vampire Embrace.
Believe me, I was eagerly awaiting that mod, but, when I found out (very late) that it had been released, I went to the site to get it, and it appeared that I could no longer get the main .esp files w/out getting the voice-acting files.........know what I mean? So................yeah, not going that route--at least not 'til I see the main mod itself and am satisfied. Sorry.
In fact, I just looked, and the files are not offered currently for legal reasons. Too bad. It looked awesome. Oh well, i'll live.
edit:
Also, doesn't UD really just use camera positioning to make it look like your character was biting the npc, as opposed to MW which was already setup to allow that in the first place? I'm not criticizing the mod, I just don't have it, so, not sure.
edit again: spelling.