SC1 Greatest Hits is a meta-map currently containing six SC1 remakes (games). You can try it out in the North American server, or download it at: http://sgh.renaka.com
The map is open source (actually public domain) in that you can open it with the editor and do whatever you want... learn, copy, improve? All the triggers are commented and most have detailed documentation on the webpage on how they work. You should first play several of the map's games to see what features are being used and what interest you, then just go to the trigger folder named same as the game and read the comments.
Here is a long list of all the triggers: http://img121.imageshack.us/img121/5463/sghtriggers.png
The map makes use of: banks, catalog editing, dialogs, leaderboard, player management, general scripting, AI scripting, unit properties. Plus there are utility triggers you can use in your own map, like tech setters, custom sorted leaderboard, alliance menu, and dialog animators. Read the documentation if you are interested
