Supa: I take it you mean making stuff single-colored? I already do that the same way you do

. There is however a proper way to do this, DP got support for vertex colors per mesh in q3shaders some while ago, haven't tested it.
leileilol: Screws up how? I'd like to keep realtime lights. Also, care to post an example default.glsl?
On a separate note, is there a way to dynamicly change which *.glsl file is used, like a stuffcmd or something?