First try with what you have, seems sufficient anyway. Then if you really feel like you're missing out on something buy the stuff you need. Don't just go out and buy everything, it's a waste of money and you'll end up with a drawer packed with unused shit.
Btw 'best' is an impossible answer for subjective questions :] Especially since you don't even mention what you want to shoot. That being said, I like to keep it simple and use an adhesive curved mount on my helmet. (to shoot what's in front of me, like my gf's fine ass, not for lame self shots where you don't see any action).
terminal spirit disease