I just got this email from Apple about a special on Time Machine.
“Save $30 on a 500GB Time Capsule. Time Capsule works with Time Machine in Leopard to back up your Mac computers wirelessly and automatically. And as a MobileMe member, you can access files on your Time Capsule drive over the Internet, wherever you go.”
Use this Promo Code at checkout: T2N3L7GJE8”
The code might be a one-time use.... so try it (first come first served).
I already have one and these work great.