There is another chip that is popular for small brushed DC motors, the TI SN754410. Here is an app note that may help.
http://kronosrobotics.com/an101/DAN101.shtml
And
http://kronosrobotics.com/an101/AAN101.shtml
The big mother of integrated motor controlers is the ST MIcro VNH2SP30-E. Here is the data sheet.
http://www.st.com/stonline/products/...2/vnh2sp30.pdf
This company sells some motor controller board products.
http://www.pololu.com/products/elec.html#motocon
Might help.