Generating LODs
The Level of Detail Generator on the Level of Detail Tools Rollout lets you generate LOD models from the root mesh. The tool will make lower-res versions of your model so that less polygons are rendered in-game when players move farther away.
Exporting Your Static Prop
Basic explanation on using WWMT to export your static prop into Source.
Starter Kits
Source Engine level design starter kits will automate some entity setups for common level design tasks.
MAP and RMF Importer
3ds Max RMF and MAP file format importer.
Displacements
An overview of creating displacements for the Source Game Engine inside 3ds Max using Anvil.
Understanding Wall Worm Displacements
Overview on working with displacements in 3ds Max for the Source Game Engine.
Installing Wall Worm Model Tools
Instructions on installing the Wall Worm Model Tools.
Porting Levels into Source
General Overview of Converting Scenes that Were Not Designed with Source in Mind
Overview on porting scenes and levels from other sources.
Map Exporter
Wall Worm's MAP export for Goldsrc.