In my experience, you get what you pay for with rain gear. I've had some budget stuff for hunting and biking, and ended up wet. Either from water soaking through or sweat. The gear that breathes best will cost you.
I've had Sitka, and now have both the Chugach and Yukon sets. With correct layering, I can stay dry all day and that priceless for me. I've heard good things about Helly Hansen Impertech II and Cabela's Rain Suede, which are a bit cheaper but I have never used them.
I think the old saying goes: Waterproof, breathable, or cheap....pick 2 of the 3.