Betagen is a creatine product (2 grams per serving) with a few amino acids thrown in such as glutamine. I used Betagen for years with great results. I would definately recommend it.
The biggest drawback is price. The ingredients in it are good, if you get 3-5 servings a day, though. I'd say you're better off getting the ingredients separately: plain creatine and glutamine (don't worry about the HMB... too expensive).