Buying a wetsuit is next on my "to do" list.
I have also heard very good things about 2XU. www.Trisports.com will do a good job of fitting you over the phone and is very good about returns.
I also heard good stuff about Promotion, for the price point. Although, some people said they were "clunky"... basically meaning thick and a little hard to swim in.
I am leaning towards getting a really nice wetsuit. Swimming in a HIM or an IM in a cheap wetsuit might be torture.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"