Buy an external hard drive or a thumb drive and copy them on there.
Buy one of those external USB docks where you attach it to your desktop and can just drop any laptop or desktop drive into the dock. About $20-$30 bucks.
If you have a Fry's nearby, you can buy an adapter so you can hook up the laptop drive to the desktop and copy them over (requires opening the machine, but the part is cheap. Under $5 I believe.)
A few options:
Buy an external hard drive or a thumb drive and copy them on there.
Buy one of those external USB docks where you attach it to your desktop and can just drop any laptop or desktop drive into the dock. About $20-$30 bucks.
If you have a Fry's nearby, you can buy an adapter so you can hook up the laptop drive to the desktop and copy them over (requires opening the machine, but the part is cheap. Under $5 I believe.)