Replying to Help Me With My Travel Plans/ Ideas for the Summer!

Well, it's getting to be that time agian...I've got less than a week left in school so I'm trying real hard to find a job and thinking ahead to where I want to travel this summer. As of now I don't have much planned out- just flying to a friends lakehouse in Texas next week to drink and jetski (I can't for a while bc of my shoulder) and then road tripping fear and loathing style across Texas, New Mexico and back to Boulder with some cool side trips planned. But I'm planning on doing a big international trip at the end of the summer. As of now I'm thinking about going trekking through Peru in late July/early August. I really want to see the Andes and what better time to go see some 6000 meter peaks than in the middle of winter? I had thought about Mongolia, but I'm going to save that till probably next summer because airfare to Mongolia is pretty damn expensive. The only other thing I have in mind is going to visit my brother where he will be surfing in Indonesia all summer, but he's going to be on a really remote island and it will cost about $2000 to go there, so I'm not sure if I will have the money.
I really have no interest in going to Europe right now, but other realistic ideas are welcome. Generally I'm limmiting options to the Caribean, Central America, and South America because it is cheaper to get there than it is to go to say...New Zealand (although I really want to go there).