Renaming passport external drives

[Unkei]

Hi all,
I have a 4 week old 21,5in iMac and love it! Am using a 750GB Passport drive for backup, and a 500GB Passport drive for some file storage. Both are working perfectly, but would like to change names of the Passport drives to Backup and Data respectively. I can bring them up in Finder, but don't see any option to rename them. If I can rename them, I won't risk accidentally saving data files to my Backup drive. Any suggestions, or is this former Windows computer user just dense?
Unkei

 

[miles01110]

Usually you can highlight the icon and press "Enter" and you'll be able to change the name...

 

[Unkei]

Usually you can highlight the icon and press "Enter" and you'll be able to change the name...

Figured it out with About This Mac after your suggestion to highlight drive icon and press enter. Thanks!
Unkei