I just ordered a Touchstone, extra Battery and extra USB charger and cable all for jist under $26 @ amazon.com Not a bad deal IMO not knocking the prices herw, but for someone who may bot have a lot of money, or you may be looking to pick up another Touchstone, this is a good place to start.
touchstone $12.99
1 extra battery $3.00
extra charger/cable $5.36
in summary I'm glad I gogled "touchstone"