Hi All- I'm looking into getting a GoPro. I'll mostly be using it for hiking/mountain biking/kayaking and some other adventure stuff. I've been looking around online and getting confused: First off, there's the Hero 3 and Hero 3+. The Hero 3+ only seems to come in the Silver/Black versions, and is it worth the extra $$? Then, there are the three different versions: White/Silver/Black Is each upgrade really worth the extra $100 (White $199/Silver $299/Black $399) Anybody have experience with these things that can fill me in?