Nice idea, I'll get some new textures underway (working on the Ingram Mac 10 and Beretta Storm).
As for the textures' size, I've noticed that if you change it, unsheathing/using the weapon will make the client crash. Now, I might be doing something wrong but it's been the same for clothes and weapon.
Edit - A question for .walruseater: when unpacking "secondary" skins (like the Taxi Cab or Camo for the Tactical Gun), there is no normal map, I only get diffuse and specular - do they still refer to the main skin's normal map (for example, to pistol_police_lg_n.tga.DDS)? Thank you in advance