Step 1. Buy this book
http://www.amazon.com/Catamaran-Sailing ... 622&sr=8-1Read it.
That was where I started after spending a week on a monohaul and getting "the bug". I found an 82 h16 that needed some TLC, picked it up for a good price, then I bought new lines, new tramp, new rudder cams and off I went!
I had an experienced cat sailor take me out one time on the boat, and I felt competent enough after that to sail it solo. I'm on season 5, I think with my h16 and I love it! Just secured a new spot to keep it masted, for free on the lake, better than what I was paying!
As for training, I've sailed out of Annapolis and I know there are a bunch of cats that sit on a beach there.. on the right hand side when leaving port. I don't think they are Hobies, but that doesn't matter much, you should get in touch with them, most sailors are pretty open about showing you how to do it!
I haven't planned any monohaul trips for this year, so I don't think I can help you... thats the only time I'm in Annapolis... but if you haven't had any training by next year, perhaps I can schedule an extra day in my trip to do a little cat sailing.
Here is a picture of the cats I'm talking about:
