Hamstring, you posted a link to your cart which turns into a link to my cart, not the product. Panniers? There are a few top-notch pannier brands, Ortlieb being one of them. They are worth it if you use them a lot. One problem with panniers is that they're not useful anywhere else, not as a shoulder bag, backpack, etc. I have Ortlieb panniers and like them. My spouse has bottom-of-the-line Nashbar panniers, and they are crappy, but she barely ever uses them, so they are right for her. Another possibility is a basket, because you can toss in whatever you're using that day whether it's a backpack, briefcase, or anything else.