Password protecting an external HDD

[996GT2]

I'm taking my WD6400AAKS to college in an external enclosure, and I was wondering if there was a good program for encrypting/password protecting the contents of the drive. I have a lot of documents that I'd like to protect in case the drive was lost or stolen.

Thanks

 

[Fullmetal Chocobo]

TrueCrypt FTW.

 

[QuixoticOne]

That's certainly the best AFAIK.

 

[996GT2]

Thanks...just tested it out on my Rally2, and it seems to work great!

Going to back up the data on my external and format it as an encrypted drive soon...