StudioCompiler

StudioCompiler: The swiss army knife of HL2 content tools
StudioCompiler can compile models either by building a .qc for you for simple models or compile using an existing qc file.

It can provide info on the reference SMD file and allows the user to replace its materials (For all you who forgot to texture the model before export, or if you want to use the same SMD's, but use a new texture).