Hi Gary

Just following up on what colette said. Don't bother getting a wetsuit until the open water season starts and then try a few out beforehand at the lakes. Liquid leisure do 2XU wetsuits and heron lake do Xterra wetsuits. You can hire them out on the day you swim at the lake for a small hire fee. Also over the weekend of the 2-4th March 2012 there is the triathlon show at sandown park, surrey this is well worth visit, This is where i first went last year before i done my first triathlon race and tried on a few wetsuits off the stalls just to get a idea for what size i need and what felt comfortable. I then rented a wetsuit for the season just in case i didn't enjoy triathlons & open water swimming from a company call "my wetsuit hire" who also had a stall at the TCR show then at the end of the season i had the choice of sending the wetsuit back or buying the wetsuit outright which i did.  Check it out http://tcrshow.com/