Laptop Locks?

Hubby and I use our computers for what can be sensitive work and were thinking we should invest in some locks for them. We both have Dell notebooks. Dell wants $45 and we see some others cheaper.

Anything we need to know? Is more expensive necessarily better? Any thoughts on what to get?

Thanks in advance as always.

any one is fine. Not much difference between them other then length, key or combination lock, etc.

You certainly do not need to buy it from dell.

amazon.com even has one for $1.99, but I didn't see that one on amazon.ca

-David