Re: Compaq 'security'?
If you've got physical access to the machine "cracking it" isnt a worry so much as something you should be embarrassed if you cant do. ie more than likely possible (see many tricks described above)
It'd take a hell of a setup to stop a half decent techie armed with boot disks , drive caddy , dipswitches , screwdriver , downtime , permission to tinker etc etc .
Encryption is probly the only way.