and i can better than you... whats your point?
i secure by looking over the code most people on here secure by copy and paste... i find quite afew exploits by hacking the game first (with permission of course) and that's without code side help.
Really... name the security problems (all of them in 100 separate files) excluding staff_*.php files.
^Remember i said security problems...
I think you kind of overkill with your clients Joshua... why make the job more difficult (if you move anything from users table then in the future mods won't work)... and when i say mods i mean free installs.
Say for example you move `laston` so now if a mod grabs when a user was laston the instructions for the mod won't work. Taking to note if your doing the security the owner of the site is a novice, they waste money on a mod they will never be able to install (if it's a paid mod) or do they come to you 2 years down the line and you'll install 'em free? (too much work)
stick to the basics... secure what needs to be secured, why fix something when it's not broken.
EDIT:
You mustn't have much work if you have enough time to do all that. (which would imply your not that good (not me saying that but seems like it))