I will go along with the "C" standing for color but I don't knowthat the "CX" " is the better accuracy chipset unit".
It looks to me like they have the same WAAS/EGNOS capabilities and both have a 12 parallel channel receiver. The biggest thing that I see is the C has 24 MB of memory and the CX has a removeable memory card capable of 64 MB.
Judgemint, I don't know what your budget is or how "hardcore" you are in your hunting. I know when I go deep in the back country chasing elk I want a GPS along. I recently up graded my old garmin 12 cx. I looked at the Legend cx, the Vista cx, and the 60csx as well as the Lowrance IFinder Series.
I did a comparison at:
http://www.garmin.com/products/comparison.jsp
I wanted the electronic compass and altimeter so that eliminated the Legend. One of the biggest hassles for meis locking on to satellites under a heavy canopy. The
High-sensitivity GPS receiver on the 60cxs appealed to me. If it were not for that option I would own a Vista Cx.
I must say however I am very pleased so far with the 60Cxs. The best prices I have foundis at GPSnow.com; although I have not had any dealings with them.
Hope this helps.....