Im having some problems with gl_wireframe, it works perfectly at home but when Im at work I cant get it to work...I think Im running both with direct_3d mode and when I type in gl_wireframe 2 at work nothing happens...

Anyone have any idea why it doesnt work at work?

gl_wireframe works only in OpenGL mode. Probably you should also use
developer 1
sv_cheats 1

I always add +dev to the end of my HL shortcuts so that the game always runs in developer mode.

this info on wireframe and other tools (http://www.slackiller.com/tommy14/rspeeds.htm#tools) might help you get a look at your level on different CPUs with different video systems.