Congratulations on getting your date!! My surgery is scheduled for June 15th. I agree that it does all happen pretty fast. You spend all of this time researching and reading then BOOM its here!
As for pre-op testing all I had to have done was a stress test. I don't have any history of stomach ulcers, hernias, excess reflux, etc. so I didn't have to have the upper GI thingy. Thankfully! Other than that just blood work for me. Good luck I look forward to following your progress!