@tayvano's answer will help you move your Ethereum accounts into Ethereum Wallet (Mist). You will have two more steps to do if you want to view your TheDAO tokens in the Ethereum Wallet and vote on proposals when the creation period ends.

Viewing the DAO token in the Ethereum Wallet

Follow the steps on daohub.org - Monitoring your balance to add the DAO token to Ethereum Wallet. In summary these steps are:

• In the Ethereum Wallet, click on Contracts on the top right of the screen
• Click Watch Token
• Enter the Token Contract Address 0xbb9bc244d798123fde783fcc1c72d3bb8c189413
• Enter the Token name The DAO
• Enter the Token symbol: Ð
• Enter Decimal Places: 16
• Click OK
• You should now have a The DAO custom token on your Ethereum Wallet contacts page.

Interacting with the DAO contract in the Ethereum Wallet

Follow the steps on daohub.org - Voting and other functions to add the DAO token to Ethereum Wallet. In summary these steps are:

• In the Ethereum Wallet, click on Contracts on the top right of the screen
• Click Watch Contract
• Enter the Contract Name The DAO
• Enter the Contract Address 0xbb9bc244d798123fde783fcc1c72d3bb8c189413
• On the daohub.org - Voting and other functions page, click on SHOW JSON-INTERFACE button. (You can also get the the same JSON-INTERFACE text from The DAO - Contact Source Code).
• Copy the JSON text in the text box below the button
• Paste the JSON text into the JSON INTERFACE text box in the Ethereum Wallet
• Click OK
• You should now have a The DAO custom contract on your Ethereum Wallet contracts page.

After multiple requests from our users, MyEtherWallet displays the equivalent value of the ETH held in USD, EUR, BTC, etc. However, we could certainly make it clearer that that is what we are showing.