I notice you are from Ontario. Are you going in the Caledon triathlon? I am planning that one as my first triathon - my 6 year old and 3 year old sons are going to be entering the KOS / Youth tris first time for all of us! And I too am trying to figure out clothing! And trying to find out places in the area that have clothing to choose from. We went to a place call Swim and Sport (or something like that) in Mississauga, and Running Works in Guelph - both places basically said that stock doesn't come in until April. I was going to try and find "tri shorts" and go with a sports bra for the first one (I think I need more support then I can get from the tri-suits I've seen). Let me know if you find any good Ontario suppliers!
Val