OS X does not boot, a status bar is displayed

The system starts booting and the standard grey screen appears. In addition, a status bar is displayed below the spinning circle. It disappears after going to 100%, but nothing changes. The system hangs at the grey screen.
I have recently installed Windows with a trial of MacDrive. I have not used my OS X for a couple of days.
I had installed and then disabled Mac FUSE, however there might have been a couple successful boot sequences afterwards.
I tried starting system from a Mac OS Install DVD. Disk utility found errors and failed to repair them. I could format the drive, but this is terribly time consuming....

Thank you for the contribution. Sadly, the cmd + v did not work- I tried a couple of times without any result.
I have decided to reinstall the OS after all attempts to repair the disk failed. However, it is not that simple. The partition does not show up at the "Where do you want to install Mac OS X to" menu. Furthermore, erase fails as well- the Disk Utility appears to be unable to mount the disk. The bar is basically stuck at approx 3/4 for 15 minutes now....
Restarting and retrying failed.

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