i bought a raynox mx3000 fisheye lense for mine, it hasnt come yet so i cant say how good it is, but ive heard alot of good things about it, the death lense is wayyyy too much money to spend on a lense. go here
http://forums.skateperception.com/index.php?showtopic=14326,
it shows how to widen it to almost as much as the death lense.
and yeah get a nice tripod and lights.