HELP!!! MBA will not boot. It's in a constant "reboot loop!"

Hi! I was having issues with my MBA and it's well known problem with getting a bit hot and shutting down the core etc. One post mentioned coolbook. Several peole gave it the thumbs up so I decided to give it a try. Installed it and was asked to restart. Now my MBA is in a constant reboot loop and will not start-up. it gets as far as the gray screen with the Apple logo and the spinning wheel. Then about a minute or so later it reboots. And this goes on and on forever. The MBA is now insanely hot and I have turned the MBA off not to cause any damage.
I can not boot in safe mode.
Any ideas??
Thanks!!

thanks for the views, but seems nobody wanted to help. cheers for that!
i managed to reboot using the OS X DVD and reinstalling. Now I have an eject symbol in my system bar top right corner and my superdrive will not "eject". this means I can not use the USB for anything else. meanwhile I ejected the OS X DVD from the drive and tried to reinsert it. NADA.
Getting to the point where I am fed up with the MBA. It gets so hot I could fry an egg on it. The system must be running something in the background, becasue even with a new install it still is slow and stutters (and no, I did not start you tube!) either this is from a real crappy batch, or I looked at it the wrong way.
Looks like I am heading back to the MBpro.

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