Thanks guys! I appreciate the info. And for the others interested...
I already got "fitted" for and purchased my irons at Golfsmith. I've been real happy with the irons, but I use the term fitted very loosely. First time to be fitted, but it entailed me hitting some G30's, XR's and the Aeroburners. I hit the TM's really well and so that's what I got fitted for.
Not a single measurement was taken and I was hitting the 3 rescue all over the monitor. It was only towards the end of our session that I suggested to the fitter that I hit S flex, since that's what I use in my woods. I only hit the 3 in this flex but hit it beautifully. Not sure if this is the norm, but that's how my fitting went.
Don't get me wrong, the guy was very nice and easy to work with, and as a newb I could've been better prepared with the "right questions" to ask, but I did walk away hoping that I hadn't just dropped $600 on the wrong clubs.