I was going to recommend a PI rain jacket I have the fits your criteria of not cheap and flimsy but not high tech or expensive either. But since I can't find it on PI's site or at REI where I bought it 2 years ago for ~$100, maybe it's been discontinued. It's a coated nylon fabric (claims to be breathable) in bright yellow with an excellent fit and huge pit zips. I ride in it in cool weather as a highly visible windbreaker and don't get too sweaty. Very waterproof, but I expect the waterproofing will wear off in a few years, as all coated fabrics do.

For your feet, I was going to recommend some simple but effective shoe covers I got from Performance, but guess they are discontinued too. These cover the whole top of your shoe, attach together in back with velcro, and have a toe piece that anchors the front. Some sort of stretchy waterproof fabric that keep your feet dry in the rain. Same idea as toe covers, but with more coverage.