There is no way to use your existing Xbox 360 controller on your PC. However, Microsoft have released a PC controller which is a Xbox controller.
You cannot play the PC version of Skyrim on a X-Box 360.
Yes. Use you're keyboard.
No, but there are some mods for the PC skyrim that might let you play as adragon.
Only on PC by downloading the Skyrim Online mod on the SkyrimNexus and there will be a Skyrim online DLC in 2013
You cannot connect your controller to your PC. However, Microsoft have released a gaming controller for PC which is a Xbox 360 controller.
Yes. try the emulator called project 64
you get a cable
no
I don't believe you can use the PS3 Guitar Hero controller on the PC to play anything
You can try using an Xbox 360 controller (not wireless).
Yes you can, but then you'll need a real wii remote or GC controller and connect it to your pc. If you don't know how, then search it on Youtube.