Current leg routines...
I do legs 2 days/week. Here is the breakdown... yes it's a lot.
leg press - 5 sets 8-12 reps / 200-340lbs
stiff-legged deadlifts - 5 sets 10-15 reps / 90-100lbs
plate-load squat machine - 5 sets 10 reps / 90-110lbs... deeeeep squats... as low as I can go.
leg extensions - 3 sets 10 reps / 100lbs
leg curls - 3 sets 10 reps / 85lbs
butt machine - 3 sets 12 reps / 90lbs
calves, inner/outer thighs
smith-machine squats - warm-up then 5 sets 8-12 reps / 90-140lbs
smith-machine lunges - 5 sets 8-12 reps / 90-140lbs
smith-machine sumo squats - 5 sets 8-12 reps / 90-140lbs
regular deadlifts - 5 sets 8-10 reps / 110-120lbs
if I have time I also do extensions, curls, and butt machine again.
I always do legs and back together... on Tuesday I do wide-grip back exercises and on Fridays I do close-grip stuff. :)