In reply to as646:
It may be a very unfashionable suggestion, but have you thought of climbing in the UK? You want world-class trad with good conditions in May, sounds like N Wales, Pembroke, the Lakes and Cornwall would fit the bill perfectly.
Also, obviously I don't know your situation and so on, but chances to do a big long trip don't come along so often. If you can hold on a year, why not do that, broaden your experience of climbing, soak up some climbing books and articles from the mags, and you'll have a better idea of what you want to do. It may be that you love bouldering, but long routes leave you cold. Or vice versa.
Essentially wait until you've seen a picture that makes your jaw drop to the floor and flood your body with the "I want to go THERE!" chemicals. Then sort out your trip, and go.