Source Navigator for Verilog is full featured tool for editing and navigating through large projects with many verilog files.
It parses verilog code into a database that can be used to navigate files, trace connectivity, and find modules and signals in the design.
It can even parse your files as you edit so you don't launch those long compile scripts only to end up with a syntax error after 5 minutes of compiling.
preview:
http://snverilog.sourceforge.net/
2/7/2003
