Thanks for the feedback. I'm now thinking of getting a light-weight water-Proof jacket and having pit-zips added by a tailor. My reasoning is that I don't have a very large budget and it seems that waterproof jackets can be had for a reasonable price. Add pit-zips and all of the sudden all of those jackets are at least $50+ more. That's a lot of money for pit-zips... I realize they may be better jackets, but I think it would be a cheaper compromise to have the zips added myself and still have breathability. Thoughts?
EDIT: That or perhaps it would even be fairly easy to use tent repair/seam sealing materials to attach the zipper myself since those jackets are generally a nylon type material. Hmm..