I hate how certain Xbox 360 games force you to hold buttons instead of allow you to toggle abilities on/off. For example, you have to hold the button to run in most games instead of just toggling it like on PC. Are there any custom controllers you can buy that will allow me to do this? It would be awesome to have the ability to simply toggle running in Skyrim or Instinct in Hitman instead of having to hold the buttons. Also, are custom controllers against Xbox Live's TOS for playing games online like COD?

I'm pretty sure it's completely dependent on the game. Have you ever actually played the same game on both a PC and a console, where you can just press the button to run on the PC version but have to hold it on the 360 version?

There are plenty of PC games where you have to hold the button to run. I don't think think it differs based on platform.

Well, whilst the game might not natively support it, you can bind keys on certain keyboards to toggle things. I have seen guys do it. I want to do that, but on my 360 controller.