I'm on Lexapro--I think I've been on it around a year. It has really helped with anxiety, and some of the depression as well (though I used to be on another anti-depressant as well, so it is hard to tell which does which). I don't remember any side effects, at least none that were glaring.
I agree with Monica--I did/occasionally still do acupuncture, meditate regularly etc, and Lexapro has really given me the help that I needed. I hope that you don't need it, though. While I don't believe that anti-depressants are bad, I would much rather be med free.