Well Hello, Withdrawing is pretty much easy. Go with the check method. It might take some time, up to 30 days in some cases. From my experiences you should have no troubles provided you meet there criteria, aka give them proof you are who you say you are.
As long as the check doesn't say poker or poker related, FullTilt, Bodog, etc. You will be fine( Poker Sites hire someone else to handle the transaction part) as long as it isn't over 5k. Then you might want to keep it on the site and withdraw in smaller amounts.
But if you hit a big one thet might change your life, I suggest you visit this link and in the header when you contact the owner of the site. Put in is the word "POKER". This will allert her and make you top priority.
http://pokerdeductions.com/
You will be very surprized as to the information when dealing with gambeling.
Hope this does answer a few questions and GL at the tables.