All I use is protein powder, and only when I'm in a situation where I can't actually eat natural food (once school starts again in the fall, for example, I'll drink a shake while teaching, since I can't exactly chow down on chicken and vegetables in front of my students when it's time for me to eat), or if I wake up hungry in the middle of the night and don't have any cottage cheese.
Once in a while if I can't get going in the AM, I'll take a fat burner before hitting the gym, however, with Ephedra illegal (this is the first bottle I bought since) they seem pointless and don't do much, so this is the last of it I will be buying.