If you are only concerned about Sleep, you can disable this functionality in Windows itself.
go to Control Panel -> Power Options and mess with the settings there and you should be able to disable sleep. In WinXP I *think* you need to go to the Advanced tab, and change the option of what to do when the power button is pushed.
Yestrday I bought a Dynex DX-WKBD Multimdia Keyboard... It's a nice keyboard with tons of hotkeys, the problem is that well... they are on the edges and I tend to grab the edges of the keyboard causing various problems... like accidentally pressing the sleep button and my PC going completely down before I can get it back up...
So... anyone know or have any clue how I can change these hot-keys? or turn them off? I'd like to do only that one in particular, but if all have to go I'd prefer all the hotkeys off than that one on...