One option is to do what you're doing, just back it up to different (bigger) media. Brand new 20gb Iomega Peerless disk cartridges can be picked up for about $120 on Ebay.

I use Stomp! backup for NT/2000/XP(formerly known as Backup Exec) and back everything up to a 120gb USB 2.0 attached hard drive on a weekly basis. It works great, and I'm very happy with it. 120gb external USB/Firewire drives can be had for less than $175.

So, if you're comfortable with the system you have now, back it up to a big USB drive that you can transport to your new system when you get it.

[This message has been edited by skofarrell (edited 08-14-2003).]