Can I re-download WoW?

Yes, you can.

Yes, these games generally make money from peoples subscriptions rather than the install disks. I know the European WoW has a download client, but not sure where to find the American one. Spend a few mins in google and i’m sure you’ll find it.

Else you can always torrent the disks :p

You can get way any way you want. Download from site, torrent, borrow friend’s disks. It doesn’t matter how you install it – it matters that you have an account that corresponds with a game serial. You can download it somewhere on the WoW site; under account management is a link, I believe.

https://www.worldofwarcraft.com/account/download_wow.html

Here ya go, bro.

Yup, follow @Syger‘s link.
I’d suggest asking your friends if they have install disks, though. I always bought digital copies, but I made sure to make my own install disks from the setup files so I dont’ have to download all 20gb or whatever it is again.
I also have the Ulduar patch on my USB drive.

It’s a lot faster to install from disk/usb than it is to download it all and then install.

Hey thanks guys!