Well it's good that your BIOS recognises your HDD.
Try to reformat your HDD's in another computer and confirm they are alive. I've had this happen and it turned out the HDD was dead!
You could also attempt to use a different HDD, preferably an older SATA drive (not one of these new advanced format SATA's with the 4K sectors which need aligning).
It could also be your DVD drives playing up or the Windows instillation CD itself. I know a lot of people prefer to install windows from a bootable USB. So you take a 5Gig USB stick and run a usbboot program and set it up so that when you boot from it, it acts like the Windows 7 boot DVD. It's lightning fast to install using this method too.
Try to reformat your HDD's in another computer and confirm they are alive. I've had this happen and it turned out the HDD was dead!
You could also attempt to use a different HDD, preferably an older SATA drive (not one of these new advanced format SATA's with the 4K sectors which need aligning).
It could also be your DVD drives playing up or the Windows instillation CD itself. I know a lot of people prefer to install windows from a bootable USB. So you take a 5Gig USB stick and run a usbboot program and set it up so that when you boot from it, it acts like the Windows 7 boot DVD. It's lightning fast to install using this method too.