Buy a new wetsuit?

Hi everyone!

I checked out this forum way back when I did my first tri (Savageman 70 - HIGHLY recommended) and got some great info from the BT crew. Since Savageman, I ran another 8 tris of varying length. I ran Savageman a second time, but it was my longest tri ever. I took a few years off triathlons to do some rock climbing (also highly recommended), but noticed that my pants had mysteriously started to shrink at about the beginning of this year so I decided to jump back into the tri waters.

In characteristic fashion, I needed an extra challenge to motivate me this year. So I decided to run Ironman Maryland in October. IM Maryland will be my first full distance tri. Does anyone have experience with IM Maryland? If so, do you think it is necessary for me to buy a new wetsuit? My current wetsuit is sleeveless and I've heard IM Maryland waters are relatively cold.

Of course, I will always be happy to take any additional advice you might have about IM Maryland (or tris in general).

Thanks,
Gary