Wise move 10.5.6 to 10.5.8?

[BernDog]

If you're not the type of user who would have a specific reason not to update (to keep it simple, I'll just say that if this is you, you'll know it), just do all the updates that software updates reccomends. Have an external drive set up as a time machine backup, and you'll be covered in any event besides fire or other natural disaster.