Have your credit card and mailing information set up on the Ticketmaster website. You only have a few minutes to complete your transaction on Ticketmaster and it would be horrible to lose great seats because you typed in your information too slow.
Another suggestion I have is to have multiple browser windows open and keep refreshing them as the time for the pre-sale nears. You never know exactly when Ticketmaster will release tickets for the event and the sooner you are in the system, the better seats you will have.
If you want the best seats for a show at this point in the process, I do not recommend buying tickets in-person or over the phone.
