Motor Shield For Arduino Mega

I Have Found These Two Motor Controllers That I Would Like To Use. Will Both Of Them Work. Which Software Library Is Better, Easier To Program. The Downside Of Adafruit Is Self-Assemble But I Know How To Solder. Is There Any Others You Guys Have Used?

Robot Info:

  • Tamiya Tracked Chasis (Dual-Motor)

  • Mini Servo (Average 5V)

Board Info:

  • Arduino Mega 2560

  • R3

I Saw A Parrlax Motor Controller At Radio Shack For 19.99$
(Sorry I Dont Have Info, I Will Post It If I Have Any Luck Finding It.)

Adafruit Motor Controller

(Is There A Pre-Assembled Version)

Thank You.