JK41R4: In case it wasn't added:
Blender
3D modeling, rigging and animation, texturing, it even has a game engine!

Also, I can't seem to access the list from the link in the first page, is it still up?

mqstout: My suggestions:
* Browser: Pale Moon (browser)
* Updaters: Avast! (AV) includes this feature now... Might be worth a note.
* Spyware: Malware Bytes, and * it!
* Network: Other: Wireshark
* System Tools: ClassicShell
* System Tools: Stardock Fences (old version still free)
* Game Tools/Programming: Unity3d
* Other Other: Wabbit TI Calculator emulator

Remove "Download Manager" category.

Nobake: I'm a fan of KDE software myself.

Amarok (amarok.kde.org) - Music player with lyric fetching, Wikipedia integration, and stuff. Works great cross-platform.
Gwenview (http://gwenview.sourceforge.net/) - Image viewer for pretty much any format. Sadly, on Windows specifically it crashes on opening an file, so may not be worth listing.
Okular (okular.kde.org) - Document viewer. Supports PDF, PS, Tiff, CHM, DjVu, Images, DVI, XPS, ODT, Fiction Book, Comic Book, Plucker, EPub, Fax, Mobipocket.
Kate (kate-editor.org) - Programmer's editor. Syntax highlighting for 180+ languages, auto-indent, bracket matching, etc. Plugins for building, debugging, SQL databases, mail, and more. I can't claim to have used anywhere near what Kate offers, but what I have used works well.

Available for linux in any package repo. For Windows, there's an installer at windows.kde.org that works basically like a linux package manager.

Also, git because there should be a SCM to go with all the programming editors and IDEs in the list.