this is what a friend came up with from HL:
76 Grunt-o-matic
99 Update health display?
100 Temporary Flashlight on/off
101 Give one of everything
102 Gibbage
103 AI Info
104 Global Info
105 "player makes no sound for monsters to hear." -- Same as "host_notarget?"
106 Brush Info
107 Texture Info
110 Q-Spec on/off
195 Node Info: Fly
196 Node Info: Large
197 Node Info: Human
199 Node Info: All
201 Paint Decal
202 Random Blood Spatter
203 Remove Creature
204 "Demo Recording" - Force client.dll update.
205
206
now say thank you to ford
some of these have been removed... some probably assigned to another command name (brush and texture info probably re-assigned to r_speeds 1) and some were probably just used for debugging and disabled before release
remember that these are from HL1, added some known NF ones to the list lol

Pop goes the sniper! :-)
BOOOOM! goes the pistol! :-D
Why does network cable have 8 wires?
To electricute an octopus...