I am also lefty and bought the Cleveland Hibore XLS and love it.
Specs:
10.5 degree
regular shaft
yellow shaft- high kick point
The shaft is the only thing I would change, the yellow gives a higher trajectory and the red has a lower one. When I bought it I wanted a higher one and now that I have learned how to hit it I want the red as I hit em high and lose some yards. Still a great driver overall. Some people don't like how loud it is but I do. I suggest getting fitted with it though. I wish I would have. I bought mine a Golfsmith.com for $150 last year. Maybe look into the monster version of it as well. It helps with people that slice or hook but if you like to work the ball off the tee look elsewhere.
