Changes to Checkout Process

Website located here: [login to view URL] I would like some changes done on the final checkout screen of my shopping cart. 1.) The state should be a dropdown menu, instead of input, and if they select "MD" 6% tax should be added on subtotal, not shipping. 2.) When you click "same as shipping" everything copies over except for phone/email. 3.) The CC card expiration should be dropdown format. 4.) There should be a "confirmation page" that sums up everything entered to double check accuracy.