I can throw in a web site that offers pretty good wet suits.
http://www.aquaflite.com/welcome.html
The biggest problem with buying over the internet, is you can't try it on! The very first wetsuit I bought was custom fitted. Bought it from Phil, the Fireman in Woodland Hills (because, we all know that every fireman has a second career). I outgrew that one (got suddenly taller).
The approach I like is to buy a good quality used suit, and have it fitted. Find the right guy (or gal), get them to add a little here, take it in a little there, and go diving.
ed