hey stealthboy,
you can use Lock My PC 4..you can use hotkey to lock/unlock your lap. even more, it has other features like:
- Custom lock screens and transparent lock screen options - your computer can be used as a presentation machine - the screen displays pictures or video, but nobody can touch your computer;
- Secure Lock before Windows welcome/logon screen;
- Displaying unsuccesfull unlock attempts - you will be notified if anyone tried to unlock your computer;
- If Lock My PC is used in muilti-user mode, a supervisor can unlock the computer without closing user session;
- You can lock CD/DVD ROM doors along with the desktop, keyboard and mouse - this can prevent CD media from being stolen while you are out;
- Command line support allows you to use Lock My PC in Internet kiosks.
You can check it out at
Lock My PC - Computer Access and Parental Control - Lock Computer Lock Desktop - Lock Computer Lock Screen - FSPro Labs
Hope that helps!