So I need a new bike (for general "I don't have a car" transportation"), and I rode the Specialized/Globe Roll 1 today and fell in love with it. (When I ride geared bikes, I never shift, so it seems like a lot of dead weight to be carrying around/potentially damaging for almost no utility).

The problem is I really need some sort of rack on any bike I have. I'm willing to carry a messenger bag, but the bag I have is as heavy as I can carry at capacity, and sometimes I have more stuff. The guy at my LBS told me there's basically no way I can put a rack on the Roll 1. Is this true? I've seen some seatpost racks, but I don't know how well they work. I'm open to any kind of rack that I can put on the bike without modifying it too much.

I also hear that fenders are the right thing to do. I'm not sure I agree with this or not, but if I wanted to do fenders, would it be possible.