Gamemake pages
Here you can get Gamemaker5

Anim8or
Free 3D animation tool. You can render them to bitmaps and then import them into GM

Winzip
We this tool you can unzip zip files. All files on this site (Voodoo net) are zipped

Shalom Help Maker
With this tool you can make help files (*.hlp). Don't let you fool by the word "beta" it already containes everything you need.