>>159643Video-videos, or still photos?
If 95% of what you shoot is video, I'd go with a videocamera/camcorder. They're designed with video in mind, and accessories are designed for video (remotes, lighting, etc).
All my still cameras shoot video, but the interface is kind of clunky to get it to do that. They also fill media cards really fast.
I do know a lot of guys that shoot a lot of video with DSLRs (mostly Canon, they do a lot better with video than Nikons do).
Tape (MiniDV specifically) is cheap, good quality, and a single tape will go for about an hour of video. Downside is mechanical parts to jam if you're in less-than-ideal conditions (shock/vibration, dust, water).
Solid-state is nice, smaller, easier to plug into computers, but it's not an archiveable media.
Optical (Mini-DVD's) have a lot of the same mechanical issues as tape, plus condensation, and shock during writing can render the disc unusable.
Or ... like I mentioned
>>159220... helmet cam. You can put these -anywhere- and get interesting shots with them.