I went down last week and got back yesterday. The lines at the border took about 5-20 minutes depending on the time of day. Never got searched/harassed or X-Rayed.
I went to help out one of my sources and learn a few things. Together, we brought back more stuff (over several trips) than I thought I'd ever see in a lifetime!
The biggest lesson I learned is this:
Don't go there to buy just enough for a cycle. Their prices only drop if you buy large amounts at a time. If you have a source, buy from him-let him do all the pharmacy footwork. (It's not easy fishing through pharmacies to find legitamate products) You won't get a better deal than your source will offer you.