I am not a great fan of renaming/renumbering objects (e.g. Caldwell) but I don't mind if they are named after the person who found them or if they are given a name based on their appearance.
Omega Cen was found by Halley in 1677 and 47 Tuc was found by Lacaille in 1751. Maybe we could call them Halley's Great Globular Cluster and Lacaille's Great Globular Cluster. (I use the word great because they both found other globular clusters.)
http://www.seds.org/messier/xtra/history/dis-tab.html