I bought a tutorial DVD by Mike Austin and then bought a trick performed on that dvd: Jigsaw Card. Very simple (using Elmsely COunt) and very powerful. Great fun to perform and hihgly recommended (as far an an amature can

I would rate difficulty 2/3, if you are comfortabel wiht the elmsely count, it is easy.
I got it from Kaymar Magic (Tel: 01708 640557) but am afraid i cannot recall the price (aorund £10).