If you have a credit card, you can purchase membership through Blizzard themselves. If you want to buy prepaid cards, I suppose you can find these from franchised convenience stores.

If you plan to start WoW, I would advise you start now, while everyone is free to help you. You might even be able to find people leveling their alternate characters who are willing to help with your quests or offer you advice. If you start when Cata launches, you are going to have a lot of difficulties finding help because everyone is going to be busy, either leveling their main characters to 85, instancing or raiding. You might think that this isn't a problem because you are just going to level on your own and you don't need help but trust me, sooner or later, you are going to need assistance especially if this is your first character.

This post has been edited by Peterbigeyes: Oct 8 2010, 04:37 PM