Wow! Thank you all for the information. And feel free to throw more at me. This is great!
As I said, I tend to get cold easier than most, although it hasn't presented a huge issue thus far while diving. The only time I got cold was a lake dive, but everyone in my class said they got cold, so I don't know. Diving off of West Palm Beach, I was totally comfy, although the water was in the upper-70's.
Living in SW Florida, I've been told by everyone I've talked to that a 3mm suit should be just fine. This is what I wore during my certification, and I was comfy. I've got to ask the dive shop that I went through for my certification about the suit I wore. I know I'll recognize it when I see the name on the suit...it just escapes me when I try to remember it.
Personally, I didn't have much problem getting into the suits that weren't 'hyperstretch'. But I'm a girl, so the concept of putting on clothing starting at the foot and working up isn't a mystery to me. lol Also, the off-the-rack suits I've tried have all fit me fairly well, so that doesn't seem to be an issue either. So I'm really trying to look at the differences in price ranges now. That's why I was wondering if the 'chemically-blown' vs 'nitrogen-blown' vs 'hyperstretch' stuff was just BS or something worth listening to.
I will be doing some more research on this before we buy suits. I just want to make sure that I'm not paying extra money for a feature that really isn't special or doens't do me any good. The prices at the dive shops here were in the $60-$70 range (chemically-blown), then jumped to around $180 (nitrogen-blown) then jumped again to the $280 range (hyperstretch). I have no problem with spending the money on a good product, but I don't wanna get bent over because of some marketing ploy either.
Again, thanks so much for your input. I figured someone around here had to know a bit more than me!