My Mac will not boot up!!!

Hi! My iMac 10.7.5 desktop will not boot up, I just get a white screen after the apple logo.
It will only start in safe mode. Will not go into recovery mode either. I just get a white screen.
I have tried:
  Removing all cables and trying to start in recovery mode.
  Resetting the PRAM
  Fcuk
I have not been able to do the "repair disk" because it is not available in safe mode, and cannot open recovery mode! 
CAN ANYBODY HELP ME PLEASE??????? I don't know what to do now. Thanks

Also depends on what you mean, what the red lights inside are showing, whether it is bad system drive, video card, SMC, whether you can get into Mountain Lion Recovery or not. And whether you hear the chime, it powers on or not.
Unplug everything. No power or USB connected.
Remove all the drives and see if you get the "?" on startup.
If you had made a clone of your system and have that 'sittin on shelf' now is the time to use it.
Hit power button for 10 seconds. Wait a minute. Reconnect bare basics (power, video, kb/mouse)

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