No need for supps. They are pretty much worthless if you ask me. Just get yourself some good food, lean ground beef has all the creatine that you need in it. If anything get some flax seeds and grind them up in a coffee bean grinder and throw them in your yogurt or milk or something.
I am curious as to which brand of whey is the best. I need to do some research on that. I'd like to start making peanut butter/oats/whey shakes to add in some extra cals and protein into my diet.
Also creatine is naturally produced by your body (I'm sure you already knew this just throwin it out there), so yeah it is safe for your body, in the right amounts. However you don't need any extra.