I like my Frogg Toggs, they are light weight, keep me dry and most important they breath. They don't hold up to heat very well, but Frogg Togg sells a heat resistant patch for $6.

-Bill-

 

+1 although I have the silver and black. Wife and I have ridden a lot in the rain over the last five years, this year 8 straight days in steady rain, and we remain dry. I think they were $149 so that works out so far to about $30 a year so pretty good value. Other than starting to lok like they are old, they are still waterproof. I dont think I would go with a one piece due to the difficulty of getting on and off. Plus, I too sometimes ride with just the rain pants when the roads are wet but it is not raining.