Jon, you might also check around your area and see if anyone is offering "Slow Jams". As far as I am concerned these are a gift from heaven. I think they are a fairly recent innovation (at least by that name). Also heard em called "Baby Jams".
What they are is an opportunity for you to go and request a tune, and get it played by someone who knows it - several times and at quarter speed or less.
Ones I have gone to in the SF Bay area request that noone play along the first time to allow everyone to listen to that version, and also to allow taping of the tune. After that it gets played multiple times slowly.
If you know others with more tunes under their belts, you might think about organizing, sponsoring a Slow Jam.
Many festivals, camps and workshops have them too.
Learning fast tunes can be a real challenge for a beginner. The other trick I use is a computer music program (I use MusicTime) where I can enter the tune on sheet music and then set it to play at whatever speed I am comfortable with.
Hope this helps.
Blessings,
Barbara