Burley makes a great jacket...

http://www.burley.com/products/raing...der+Jacket&i=4

I've used mine for 5-6 years, and it's the messenger jacket of choice here in sunner Portland, Oregon.

It has vents in front and bag, long pit zips, breathable/waterproof upper body plus a long waterproof tail in back... And it's made in Eugene, Oregon.