are you a dude or a chick? what is your waist size? things like like would be helpful even though its really not hard just to shop for yourself. you shouldnt be worried about warmth, youll get that from your base layers. as far as waterproofing goes, look at something with at least a 10,000mm rating. although 5000mm might be fine for you depending on your conditions.
go to the-house.com and search around. then go buy local or at a better online retailer.