If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
I just bought a n S50 and have had to return it to Canon along with the microdrive which is stuck fast and won't come out. A bit disappointing. I use the same microdrive in my other camera with no problems at all. Has anyone else out there experienced this problem?