Encrypt any computers you have which may have Personal Identifiable Information (PII)( Tax prep software, online shopping, personal photograph, passwords). It may give you a bit of peace of mind and protect you from Identity theft if someone does manage to make off with them.

Truecrypt is a reputable opensource hard disk encryption package. It runs on Windows and Linux. A commercial hard disk encryption package is marketed by PGP Corporation.

No affiliation with either software source.