Encrypting home partition

[Timo Myyrä]

I'm just trying to encrypt my laptops /home partition to hide my 
personal info if the worst happens and my lappy is stolen.

I'm wondering what would be the best method to encrypt the hard drive? I 
saw some discussion on the mailing list recently and somebody pointed 
out that I could encrypt whole partition.

I'm currently creating a image within a partition which I intend to 
encrypt then as instructed for example here: 
http://www.blackant.net/other/docs/howto-encrypted-home.php

Which would be a better method, the separate image or encrypt whole 
partition and how to encrypt whole partition on OpenBSD?

Timo