nanohex:
About the motors, what I mean is that can motors that only draw up to 2A supply enough torque, and at a reasonable rpm, to be of any use?
Hi, unfortunately there's just too many variables involved to make a judgement for you on this. If you check out the L298 data sheet the motors can be driven to 2A as you state, but anywhere between 5V and 46V so that's a huge range of options for how powerful your motors are, and that's even before you consider what kind of gearing, size of wheels, and the limits of your battery versus motors as trade-offs in your class maximum weight.
nanohex:
Of course, I'm expecting to get thrashed (gonna be up against some hardened college students), but I figured, why not give it a go :D?
Why not indeed 
Good luck ! Geoff