You can find the PC mods and information (including installation) at that website. The one that I use is "EqualLove" but I used "MetaGameItems" for this video, specifically. All my other videos use "EqualLove" modification.
This ONLY works for the PC version of the game. NOT the 360 and NOT the PS3.
I also do not claim this mod as my own work. Just merely showing off the fun.