When you set up your PAYPAL account, you should probably opt for the Personnal account. There are no transaction fees for payments out of the PAYPAL account, but incoming funds might be subject to fees depending on the relationship between the payer and PAYPAL. There are no fees on incoming funds from FC (or most other firms that do mass payments to PAYPAL). Your account is set up with the email address that you specify -- make sure it is one that you expect to use for some time.
Personal PAYPAL accounts are limited to $400 in monthly transactions (not sure whether this means $400 in total or for $400 in incoming funds and $400 in outgoing funds). There is also a $2000 liftime max in transactions as which time you need to convert your account to a PRO account (and be subject to transaction fees) This is for US accounts -- but be different for non-US.
In any event, if you want to move moneys out of your PAYPAL account (ie transfer funds to your bank account or buy something online with the PAYPAL funds at hand), you need to a VERIFIED account holder. Not difficult, but you will need to provide PAYPAL with your bank routing number and your bank account. They, in turn, will send you 2 nominal deposits (which you don't have to send back) and you need to let them know what amounts you received. You can also get verified using a credit card, but I believe there are transaction fees involved if you transfer monies to/from your credit card.
The purpose for having this information is to allow PAYPAL to bill your bank account or credit card, if you make a purchase that exceeds the balance in your PAYPAL account.
I have never had a problem with any of my PAYPAL transactions or the use of my banking information.
Once you get your PAYPAL account set up, go to your account page and click on Account information. Click on PAYPAL as your payment option and enter your PAYPAL email address.