cash out on swc you need a bitcoin wallet, this can be another poker room, an online wallet like coinbase or blockchain, or almost any bitcoin wallet.

Bitcoin is accepted alot of places globally moreso in china,japan, and uk than it is in the states now, but its growing. 2 las vegas resorts accept bitcoin as well as ebay is allowing sales of crypto currency.

As far as i know you can buy off mt gox or coinbase. i have a coinbase acct just like paypal you link a bank account and credit/debit card and you can buy coins instantly and when you have coins it converts it to current price in usd and you can sell coins for usd currentcy or withdraw to your bank account