Thanks everyone! I too like the look of the iPhone 4 so I'm hoping to have just the bumpers and not a full case as I did on the 3G, however I am totally afraid of dropping it.
I have had quite a few challenges but I still love the phone

I'll be picking up my third one (third times the charm right?) on Saturday. First my camera didn't work and now I have the dreaded yellow spots that won't go away midway down my screen. Often apparently they go away on their own but after 10 days it appears I wasn't so lucky. I'm really looking forward to using the video feature on our next trip to WDW. The video I've taken so far has been so clear - it's really fantastic!
Thanks again for your input.