News : 2002 : Quake 3 Total Conversion
Apparently there's a Quake 3 total conversion mod in development based on Spider-man. The project is nearing completion and looks to be pretty interesting. The mod isn't ready yet, but you can check out models and a level. Included are a whole lot of models of Spidey villains.
[Ed - The web-site referenced no longer exists, sorry.]