sure,
from this website alone (tinyrc) you can get:
*TRC R-Spec (3.6-3.8)
*TRC Formula 34 (3.4)
*BCG Motors 2.6
*BCG Motors 3.2
*BCG Motors 3.8
*TRC 1.6
*TRC 2.2
*TRC 2.4
*TRC 2.6
*TRC 2.8
plus, there are lots other places to get motors, but we buy from TinyRC
Ive heard of motors from 0.8 to 4.2, so I know theres a much wider selection than just what they sell as stock hop ups.
What Ive done to find micro rc websites is just type in things like:
minirccars.com
minircracers.com
TINYRC.COM
the list goes on and on....................
hope this helps, and welcome to the forums
David