Purchasing is still not working. The site is back up but I went to purchse what I had in my cart and got:
"
Your purchase has not been completed. Your credit card information has been declined by your credit card company.
Note that in some cases, your credit card company may put a 'hold' on funds in your account, but you will not be charged. After correcting any errors in the information displayed below, please try your purchase again."
I know my card is fine as I had sent my wife money on paypal.
Hopefully this is just steam still not being up and my card is fine.