Hi,
I did a small post this morning on getting Bitcion. Here is the link https://steemit.com/bitcoin/@knowtheblock/the-safest-easiest-way-to-start-with-bitcoin-ethereum-and-the-blockchain-coinbase
To purchase Steem I moved Ethereum directly to the Steem wallet app. Secondly today I also moved a very small amount of Bitcoin on the Poloniex exchange to pick up a little more Steem - that is by far the easiest why to move things quickly - however you run the risk of an exchange having issues.
All the best getting into the game - KTB