A.C.
I recommend you check out thebabywearer.org. You have to sign up, but they don't spam you or sell your information, and they have a forum there (very similar to this one, actually) all about different forms of carriers, and so you could ask and get some very educated answers. They also have an incredible list of shops complete with ratings from various baby-wearing moms. Good luck!
P.S. I personally love this website: http://www.sleepingbaby.net/ I bought a linen ring-sling from this woman, and the price was extremely reasonable and the quality very good. You should check it out.