In reply to andic:
nice one. deep end is the only way.
i find it helps starting with dumbell versions (singles and doubles) to tune each side of the body, and to really nail the posture (bar is much easier as it more stable).
also breaking down the lift into phases and going thru at different speeds.
your feet play a huge role in oly lifting (toes up!), so either go barefoot/socks, proper lifting boots or five fingers/minimal shoes. i scoffed too till i tried it (bastards wont allow barefeet where i go so i use NB minimus shoes).
regular running/x-trainers dont work very well.
be careful of your lower back. some ghd exs help there.
for the snatch, def get some coaching or spotting. again, DBs or KBs work well, plus OHSs.
i find that dozens of light (+/-30kg) reps help for the complex muscle memory needed, along with heavier sessions.
dont forget its the athletic aspect thats where the value is. 1RM stuff is useful, but the synched, weighted cardio side is whats hard to get any other way.
track down stuff by Dan John. anything he says is worth hearing even if unrelated to that exact lift. sort of guy who has forgotten more than most will ever know, especially regarding other applications of lifts.