I have a Marmot Super Mica.  It's a really great little jacket - extremely light weight, totally waterproof, and breathable (within reason - it does have pit zips, pockets and a hood.)  It retails at $200 which is inexpensive when compared to e-vent or goretex products.  It is not a jacket to keep you warm but it will keep you dry.  I'm very pleased with mine.  I had it with me last year in Wabakimi in some pretty heavy rains and I stayed dry.  Here's a link which, as you can see, has them on sale at around $150 (no reason to pay full price for anything in this economy!)
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