I really like this site for finding different arrangements of a whole lot of variety of songs. Once you found an arrangement that fits what you need, many times you can even transpose it on the spot. When you are ready, you can easily pay for the download and print it right off at home.
Students of mine: If you find a piece you like but would like to run it by me before you purchase, send me the link of the piece you are considering. I'd be happy to help!