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.
Recently bought an S5. Getting to grips with it whilst running Fuji too. Looking forward to using the forum. Got to get PASM settled in my head again. Been a little while since I used a Canon DSLR, but I'm sure it'll be close enough. Cheers.