Sure Summer, I take:
regular multi-vitamin
l-carnitine (for fat loss and cravings, but I don't really have cravings anymore...)
l-glutamine to prevent muscle catabolization and help with soreness/repair. Also boosts the immune system.
l-carnitine to give me that extra ooomph! when I lift!
calcium/magnesium/potassium id I don't take this, I get terrible cramps in my legs and I have trouble sleeping well.
HTH!