Actually the best takedown training right now is on Monday and Thursday nights at GB Seattle. But here's my current takedown drill/skills-conditioning program for the next few weeks.
Seoi nage (reverse pivots) L/R
Ouchi gari (drag two-step) L/R
Ankle pick (level change 1) L/R
Shoot w/ Faber triad (level change 2) L/R
Foot sweep L/R
3 sets of 1 minute each is 15 minutes of work (1 minute rest between sets). Rest five minutes and repeat.