super_crunch....
Definitely set up an account with Ticketmaster with your cc info, etc. before the date. About 10 minutes before the sale begins, be sure you are logged in. I didn't start clicking on the "buy tickets" link for my concert until about 5 minutes before - and I didn't keep refreshing every second - I waited until my computer said 1 minute and then refreshed every 20 seconds or so. I'm not sure how many times I did it, but I never had a problem. I have heard the horror stories, though, but I don't know what causes that problem.
The screen will pop up and you need to click number of tickets, your price choice, and seat preference - definitely hit "best avail." for that. The box is right there for you to type or paste your code. When you submit, one of those stupid scrambled code things will pop up - I was so nervous, but I got it right! For me, it didn't take long and my tickets popped up. You do have two minutes to decide, but I jumped on them. I had written down the section numbers from the seating chart in order so I would sort of know where they were but I didn't really care. I was fortunate and got really nice seats.
Oh and I'm not sure I would risk trying to get two sets of tickets with the same code...anyone else have suggestions?
It is so scary, I know. Good luck to you!!