I also have used the Ticketmaster online for a long time with excellent results. Setting up your account ahead of time (charge card info) will make things go much faster. Also, are you aware of the time the tickets go on sale? Typically its 10am but you should check that on Ticketmaster beforehand as well. Usually the tickets online will be offered to you for two minutes then released so you need to make a quick decision if they are the seats you want or not. Personally if you think its going to sell out quick I would take the first choice given. But then again you also are given a choice when you first start the process of the ticket price range and area you want...main floor, balcony, mezz, or best available...I usually select best available. Good luck!