External Hardrive question

I finally have all my files downloaded that I had backed up from the Windows based PC, and now want to set-up TM to get a backup going. I have a WD 1TB external hardrive hooked up but that drive does;t show in finer. It just indicates the software that came with the drive, but not the drive itself. How do I show the drive to I can get TM to backup to it?
Thanks

Has that external drive been formatted to work with a Mac? if not...use Disk Utility.

- Nick

Nick...it lists more then one choice for format type...which one should I choose?

Mac OS Extended Journeled, is the Mac OS X preferred format type, unless you want to add, Encrypted to your Time Machine backup, for added security.

perfect, thanks.