Controlling a DC Motor using Ardumoto

Hey guys,

I have a ardumoto board and a 7V dc motor, i am having the exact same problem described here

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238366770

Using the technique described on the message above using a multimeter shows that dc motor needs 0.70 amps.

When the motor is connected to the ardumoto LED on the ardumoto goes dim, is this motor requires too much amps to work with arduino?

What kind of voltage and amp's should i look for when buying a dc motor?

thanks,