I'm looking at getting started myself. This is what I'm planning on:
-GoPros IMO are the way to go (no pun intended). Their cheapest version, although leaving a little to be desired, is going for about $130, I believe.
-Set yourself apart from other YouTubers (try something different; be yourself, don't try to imitate the popular channels)
-Stay as far away from "homemade videos" as possible: use good lighting, recording, ect. Try to be professional.