I'll check where I work if we can get a Fireball. We stock Venom rims so it shouldn't be a problem.

There's some other motors out there too. Team Orion makes the Baja modified motor (although this is on the higher end side, it's a $50 modified motor so amperage draw may be too high), they also make the Big Block and some other stuff. But before I get into that stuff I need to get a Hyperion E-Meter. If you don't know what this bad boy is check it out at TRex Tuning (go to Setup -> Hyperion Emeter). It's a hand-held wattmeter that measures watts, voltage, amperage, resistance, everything of the sort you'd expect. But it also has a built-in tachometer and a datalogging feature so you can plug it into your PC and have real-time graphs! I think it's a necessity for anybody who wants to change out motors and find the right power system. I'd have to make sure that the head speeds are up to snuff, it's not drawing too many amps and also I can find out if I can push it farther.

The motor I can get will proabably be a tougher choice for me because I'm using the 900mah LiPo so the amperage draw can't be as high as it can with the 1320mah LiPo.