Pro-Tips: If you are not sure what your/someones SteamID is, go to your or their Steam profile page and take the name or number at the end of the URL.
For example like http://steamcommunity.com/id/xxxxxxxxxx/ or http://steamcommunity.com/profiles/xxxxxxxxxx/
Mine is http://steamcommunity.com/id/thefunkygibbon/ but it could be a number beginning with 7656119 too...
If possible, keep the list of game names as similar as possible to the Steam store names. One game name per line, the script will do some tidying up of some of the list but its not 100% yet.