I'm looking at purchasing a new set of irons. I would like some suggestions on what you guys would think would "fit" my golf game best.

1 - I'm currently a 10 handicap.
2 - I'm a short hitter. 6i=150yrs
3 - I'm a lefty (noting since some clubs are not made in left handed)
4 - I have a low ball flight but would like a higher ball trajectory to gain more carry.
5 - I'm currently playing Mizuno MX-15 with Dynamic Gold R300

The first thing I have though of is for a shaft is GS75 R300 or another very light shaft.

As for clubs I'm interested in, I'm really not sure yet. I plan on going to GolfTown this week.