So, I've never Pre-Ordered a game, let-alone a game from Best Buy. How will this work I am planning on going to the store a about 4:00 to pick it up. Am I supposed to bring a reciept or print out an E-Mail or what?

Whatever you put in to purchase....

If you pre-ordered it you should get a game case with instructions on the back

steps 1-2 describe how to pre-order the game, steps 3-4 describe what to do to pick up said game

step 3. Retain your receipt verifying your paid deposit. TO OBTAIN CREDIT FOR THE DEPOSIT YOU RECEIPT MUST BE PRESENTED WHEN PICKING UP THE GAME.

step 4. Return to store where deposit was made between 10/19/10 and 10/23/10. Availability date is subject to change. Product will be held 4 days after arrival date. Proceed to Customer service with deposit receipt. Pay existing balance due on game (plus applicable taxes)

I ordered it through the websit does that change anything?

They will have your name in the database. Mind you, I actually have a case and receipt, but when I ordered, they made sure they had your name right. So if you don't have the receipt or case, bring ID.