I made two of them: One of Kingdom Hearts and the other one of Elfen Lied. It's nothing big, but they worth something. Please leave comments on the youtube page or here, it would be strongly appreciated.
Kingdom Hearts - Sora & Kairi - If I let you go
http://www.youtube.com/watch?v=RZRkPi5AAjc
Elfen Lied - Lucy & Kouta - Gotta be somebody
http://www.youtube.com/watch?v=nkIEHWPLTXE