pugsarecool: On the topic, does anyone know of any Visa or American Express prepaid gift cards or that sort of thing you can use to buy off GOG?
I have used pre-paid cards before. The process was generally buy the card, give it a bit of time to make sure the funds activate (like a couple hours), then you can goto the card's website and enter in some info for making internet purchases. Most card I've used say to give it a 24 hour period after registering before you use it to make a purchase online.
The fees are usually $3.95 for $25, $4.95 for $50 and $5.95 for $100. Cards now a days in the United States can't be used for international online purchases due to a law that went into effect March 31st 2012. You would have to use the Paypal option at check out, then pay as a guest.
Edit: Also, the first time using the card, a $1 fee will be charged to it that will sit for anywhere from a couple days to a week as a fraud check. Take this into account when you make a purchase so it doesn't cause the purchase to fail. This is only done the first time with paypal when using the card.