Hi there!
I also have a DSLR that I have contemplated taking into the parks. But I know that I would just constantly worry about it if I did. So I've never brought it in with me because I'd rather enjoy the parks and not worry about damaging several thousands of dollars worth of equipment.
If you do decide to take it with you, I would definitely recommend a nicely padded camera bag. The Crumpler Camera Bags are quite nice, moderately priced and very comfortable. Search
www.ebags.com for 'Crumpler Bags'. I have the '5 Million Dollar Home' and it is plenty roomy for my Canon DSLR, a 28-135mm lens (a great traveling lens, by the way!), extra batteries, memory cards. However, they would not be protected if you got caught in one of the Orlando's infamous rainstorms. The bags that I have can easily be carried on any of the rides (just loop the strap securely around your leg on any of the 'biggies'...RockNRoller Coaster, Expedition Everest, etc.)
As far as protecting it against rain, is there someone in your group that could/would carry a semi-empty backpack? If so, what I would recommend, although it may sound a bit goofy, is to have that person keep a plastic sack in their bag, so that if it starts to rain you can quickly grab the plastic bag out of their bag, put your bag in it, and then put that person's bag (whether it be a backpack or not, just something that completely closely).
For the wet rides (Splash and Kali) I would do the same thing as above, but take it one step farther. Again, a bit goofy, but it works...I would put that bag (that has the camera bag protected in a plastic bag in it) into another plastic bag. I have had the pleasure of getting ABSOLUTELY SOAKED on both of those rides and I was so thankful that I had put my backpack into an plastic bag.
On Kali, that center console doesn't completely shut, so water can still get into that center compartment so things in there can get wet. On
Splash, I have literally held the plastic wrapped backpack on my lap. I usually use a clear garbage sack and then tie a knot in it so NO water can get it.
Wow, was that more than you ever wanted to know?!
