The Gecko's are rated at a much higher voltage and amps, will drive large motors as well as smaller ones.
for the amps of your motors, i can not see them only being 27 oz/in is it possible they are 270 oz/in?
what is your power supply?
for the smaller motors i would think the Xylotex will work fine for you.
Also what is the controller software you are using? (parallel or serial interface).
And are you going to use a breakout board?