Merak
Welcome to FAOL. While I'm not in favor of allot of wrist when casting, I won't try and tell you which is right or wrong. I will say that in my experience too much wrist causes me not to throw a nice tight loop.
What I will suggest is that you get a copy of Joan Wulff's Dynamics of Fly Casting. Either the dvd or video. Another suggestion would be to look at Fly Fish TV on OLN. Bruce Richard's from Scientific Anglers did a series of casting instruction. He is one of the best casters/instructors IMHO. His series may also be in dvd, but I don't know for sure.
Last but certainly not least, check out Fly Fishing Basics here on FAOl.
Good Luck!
" If a man is truly blessed, he returns home from fishing to the best catch of his life." Christopher Armour