I picked up a 1GB SD card the other day… for $60 and a $15 mail-in rebate. I only have one device that supports Secure Digital at the moment, but it seems to be the “removable media” of choice for products today. I'm not sure if prices will go much lower than this before the end of the year, but I wouldn't skip any of these deals if you have the chance. I've heard of 512MB units going for half that price, but… you should always go for the most you can afford. And it's not just SD – there's other memory on sale, too!