http://www.campsaver.com/outlet/pulse-jacket-men-s
Use code OUTLET-20 for an extra 20% off, shipping is free in the CONUS.
For less than $100, I suspect the Pulse is probably the most reasonably priced ultralight full-zip WPB jacket out there. I used a Rab Kinetic Jacket (same materials/cut, but add more pockets/velcro cuffs) on nearly all my trips last season – great hood, decent trade-off between weight and functionality. The Pertex Shield+ fabric is 2.5L and quite thin – not exactly confidence inspiring on first inspection, but it's held up great in the field so far, no delamination yet and it's proved to be fairly resistant to abrasion (considering the weight). Consider sizing up depending on your intended layering strategy – the cut is a bit tight in the shoulders.

