I agree. While the CAAD8 is a great frame, it's simply not designed for racks or a lot of weight. I'm not saying it wouldn't work, but there are better choices for your needs. I'd recommend you take a look at some cyclocross/touring/commuting style bikes as well. Pretty much every manufacturer has a version (or two or three) now. Some lean more toward the racing end, some more on the touring end.