A clamp or a photo tripod will be fine if you shoot no-moving videos. But as soon as you want to pan and tilt, you will need a specific video head. Photo and video head use standard 1/4'' 20 and 3/8'' screws, you will need some to attach the audio gear. Simple mic adapter may suffice, but rycote mounts avoid transition of shocks. If your budget is large, google '15mm video systems", you can make your own rigs.