I have a Patagonia Torrent Shell that I use as my commuting rain jacket. I decided to get it instead of a cycling-specific jacket because I wanted the hood for use off of the bike (hiking/backpacking). It's light, packs easily, has big pit zips, and I think it is a good price. Most of the major outdoor gear manufacturers such as Mountain Hardware, Marmot, TNF, etc. have similar products and most of them run around $100-$130.