If you want to do a smallmouth bass pond it is best to stock forage and then give the forage a year to multiply before adding predators. I am 6 months into the waiting game with my forage and I have decided to wait until fall of 2013 to add my Yellow Perch and Smallmouth.
Once the pond is ready add some golden shiners, crayfish, grass shrimp,red eared sunfish, bluntnose minnows, banded killifish, and spotfin shiners (sourcing the last three can be tough but
http://www.jonahsaquarium.com/ has them, get 50 of each, the prices for bulk orders are WAY better than what is online). Three months before you intend on stocking predators add 1000 fathead minnows. Be sure to plant some small hybrid lillies and try to get some beneficial grasses going. Get plenty of wood, rock, and PVC structure set up as well. In order to get the spotfins to spawn you will need to create some crevice structures like this one I made out of blank CDs, electrical wire, and metal spacers (these pictures are from when I first hung the cd structures before the pond was at full pool, they are now submerged):
