I went to Dr. Aceves in Mexicali. I was, and am, extremely happy with my experience, which was $8750 a year ago. Look at my ticker! There are lots of people here who had Dr. Aceves as their surgeon and as far as I know, no one has anything bad to say about him.
Don't be scared--it's an adventure, starting a new life as a skinny person. It didn't hurt and I still get to eat the things I like, just lots less than before, and some things I used to like (like bread) I don't care for anymore.