Well, my first advice would be to totally ignore the cutesy little pocket cameras and buy a Mini DV camcorder instead. But presumably you don't want a massively bulky thing.
You'll have to be a bit careful. Much like in digital cameras, the resolution isn't everything. That Enova might chuck out an HD image (in that it's 1280x720 pixels in size), but there's nothing to say that it'll be a decent quality image. In fact, according to the specification it doesn't even do that:
Video Resolution: 640 x 480
...so quite how they've got away with calling it 'HD' is beyond me. One to avoid, methinks.
To be honest with you, I hate these little pocket camcorder things. I'd much rather have a proper camcorder or a digital camera with a video mode. But just to satisfy my curiosity, I poked around a bit on Amazon, and pretty much came to the conclusion that I'd get the Mino HD. But then I checked out
this review, and I've changed my mind - the Kodak seems to give better images. Also, you'll never be able to use the Mino's controls when you're skiing. Touch controls + gloves = uh-oh!
Personally though, I'd ignore all of that and get a normal digital camera. In fact, considering you're skiing, I'd go for an
Olympus Mju 850SW, which is shock, water and freeze proof. But that's just me.