Keep in mind that with the Henderson Hyperstretch suits you can gain or lose up to about 20 pounds and still fit into your suit!
Depending on your size, there's someone on ScubaBoard selling a size 10 3mm Hyperstretch for like $150.
Frankly, I have Hyperstretch suits in both 3mm and 5mm and I can't imagine wearing anything else....they are simply WAY too comfortable and worth the money to me.