so.....my runtime reached the 200gb mark, and so much stuff o.o

i may or may not gather the courage to clean stuff -_- but was wondering whats a good program (stand-alone software) that can be used to keep track of files better?

at the moment, everything is sorted pretty well into folders (a rather large number of them), but it only provides one system, unless i duplicate the files (killing the space on my harddrive).

ultimately, id like something that works in the background, that creates a drive/folder browsable by windows explorer or such, and allows me to make multiple locations that a file exists, but only keeps 1 physical copy of such file

such as.....a texture map for v4...would "exist" in the places below, but only 1 accual copy of the data would be on the drive
D:RuntimeTexturesMil4-FemaleTorsoBritney-Torso.jpg (folder for all mil4 torsos)
D:RuntimeTexturesCharactersV4BritneyBritney-Torso.jpg (folder for all britney textures)
D:RuntimeCharactersV4BritneyBritney-Torso.jpg (folder for all items relating to that character)
etc

if anyone understands what i'm trying to go for, thoughts and help in finding what i'm trying to find would be nice =P