Best of luck but please don't go to Mesa or GoJet. In the end I'm 99% positive you'll regret it. Chasing an upgrade into a really crappy company is a huge risk. If you go to one of the carriers I recommended above, your upgrade might be 6 months after your upgrade at Mesa would have been but you’ll get A LOT MORE TIME OFF, be more respected and you'll MAKE A LOT MORE MONEY (hourly pay rates are nothing without pay structure and Mesa has none).
I'd like to stay and chat with you some more but I have to fly to HOU.

Good luck and take a look at this thread.

http://www.airlinepilotforums.com/sh...t=14048&page=4