Q: I'd like to preorder a cd off iTunes, but the only options for payment are credit cards. I'd like to pay with an iTunes gift card, can I do that? How do I do that?

I've seen nothing to indicate that you can't use an iTunes gift card to make a pre-order. If you redeem the card, you should be able to make the pre-order. For general information about pre-orders, see:

http://support.apple.com/kb/HT5714

Note, however, that it will be your responsibility to keep track of the charge that will go against your credit balance when the CD becomes available and ensure that you have sufficient balance or a credit card entered to cover the charge. If you don't have sufficient balance at the time the CD is available, the iTunes Store will probably go ahead and make the sale but you will then not be able to download anything further, even things you've already purchased, until you either provide a credit card or redeem another gift card sufficient to cover the amount you owe.

Regards.

.

http://support.apple.com/kb/HT1574