Personally I am a Musto guy for my foulies. I buy almost everything online.
Great prices on the net at APS. Check the sale rack for last years gear and get some insane deals. For example, if you need a XXL dry suit, check out this insane deal.
http://www.apsltd.com/Tree/d75000/e72079.asp
That is almost what I paid for my waiders.
I also have gotten good deals at layline.com as well.
I'm not affiliated with either of these companies.
_z_