I'm using a basic 2x4 based kit I picked up from Lowes about ten years ago. They don't carry it anymore, but take a look at 2x4 Basics:
http://www.northerntool.com/shop/too...6224_200226224

Or this from Home Depot: http://www.homedepot.com/buy/simpson...l#.USgKLzdW9NI

Another possibility is Harbor Freight: http://www.harborfreight.com/garage-...nch-93454.html

Good luck!