How to work the caméra?

Okay, this may be a crazy idea, but would it be possible to use a GoPro (with fisheye removed) to film? I only ask this because I'm leaning towards getting a GoPro for filming parts of bicycle touring so that family and friends can see the places I go, rather than just read about them on my blog. I think the cost is prohibitive for me if I were to use it solely for action footage, but if I were able to make it multi-purpose for filming a show as well, that really makes it more appealing. I know I won't have control over certain things that would be really nice to have control over, but I can't justify spending tons of money on a DSLR + a great lens. I would be able to get a tripod of the camera, and use my phone as the viewfinder to frame everything. Also, those Blue Yeti microphones look very nice, and they are cheap. I think using a GoPro would be... well, not terrible, but not great. However, it would be cost efficient in getting started, plus I would be able to action shots with it as well when I travel.

Any tips on lighting? I'll have to film somewhere other than my house, because DAMN my house is dark as pomegranate 24/7.

Ohhhhh [MENTION=5555]Zelkova[/MENTION] do you have any insight for me? I've been doing a lot of research and I'd be going after the Hero4 Silver as it suits my needs most, but the only issue I may run into is problems with focusing the camera and the depth-of-field. Nothing is adjustable on the camera, so I would just have to deal with whatever the footage comes out like, which wouldn't be terrible for a beginning camera. Ideas?