You don't need 3 bottles of CE-2 at upwards of $70 a-pop.
If you ask me, in-general, Creatine is an overstated and over-used supplement. But guys love the shit so there's not any point to opposing. However, Mick made the smartest assessment here.
If you're taking NO-Explode, you do not need another creatine. Here is why:
1) NO-Explode contains the AKG Creatine (if I'm not mistaken, this is off the top of my head), which is already more potent than the monohydrate. 3g of AKG Creatine > 10g of the monohydrate creatine in Cell-Tech.
2) NO-Explode already contains the benefits of Nitrous boosting as well. So, in that one supplement you're getting increased hydration AND blood-flow to your muscles. There's not a need to pump anymore fluid than that and what you drink in a day to your muscles unless you're specifically endurance training, I don't know if you compete, but if you're just trying shit out my guess is no or you wouldn't even be willing to so freely experiement.
I don't know if you knew, but BSN makes a compliment Product to the NO-Explode called Cell-Mass, which is an Esterfied Creatine. Considering each Company makes their line so you can tentatively use everything at once, BSN would have you use that.