Is it still legal to import for personal use? Back in the day (3 or 4 years ago now) I used to be able to go to TJ and stop in at a pharmacy where I'd get a referral to a doctor to write a script for $25-30 and walk out with 30-90 Valium (depending on the doctor). I ALWAYS declared the medication at the border, and after looking both the medication and the script they'd wave me through.

I thought I'd heard those laws had changed? If they haven't substantially changed, declare for sure. If they have then its just too much hassle. There always was something a little seedy about the whole thing and gambling with US border patrol would definitely tank the whole experience for me.