Softimage Mod Tool
Program used to make models for HL2.
XSI Mod Tool(Based on SOFTIMAGE|XSI Foundation) is available for FREE.
- note: File Structure in this tutorial is outdated. Replace
sourcesdk_content/cstrike. See Source SDK Files and Directory Structure for details.
3D Buzz - "Introduction to XSI" 5 hour VTM series
SourceSDK contains various character/weapon/vehicle sample scenes(.scn) for XSI. See "sourcesdk_content/<game name>/modelsrc/..."
Also there is Korin XSI Mod Tool Scene data released by nkinta.