I think to get back into the swing of things...
1. Eat loads of good clean food
2. Workout with high intensity
3. Supplement properly with a)creatine b)glutamine c)whey blend d)fish oils e)a multivitamin
4. Sleep well

I think that MuscleTech have great products. I don't overdo them myself. I spend more money on my food and more time in the kitchen.

Welcome back into the gym and Happy Training.
Good luck, bro