Not booting, not even into BIOS. PLEASE help.

Hello,

I have a custom built computer with a Asus P8H67-M Pro motherboard, Intel i7 2600K processor, 8GB Ram, 128GB Intel SSD, (And another 1TB 7200K SATA Drive, and I have Windows 7 on both of those hard drives in case one goes bad) and a NVIDIA GeForce GTX 460 2GB video card. Now you know a little more about my computer, here's my problem(s):

The following has happened three times: The computer freezes, I hard reset the computer, windows becomes corrupt, I have to boot into my other Windows partition to reinstall Windows on my other hard drive, then I restore the system from an image backup and everything works again.

Except this time, my computer has started to not recognize my SATA devices. I have a Samsung Blu-Ray drive and a normal DVD drive, both are SATA devices. Then I obviously have my two SATA drives, making 4 SATA devices in total. It won't recognize any of them. Sometimes it does, but it's really hit and miss. I restart it, go into the BIOS, and look at available devices and usually none of them are there, but sometimes there's a drive or two.

Then the worst problem I have is my computer has stopped going into the BIOS. I reset everything on the motherboard, and that helped. But that's also hit and miss. Sometimes it'll boot into the BIOS, and sometimes it won't.

I personally thought I needed a new motherboard or a new power supply. A guy at work thinks it's a SATA controller problem and that I should get a 4 port PCI sata controller and that would fix the problem. Once I get the SATA problem fixed, I intend on completely wiping everything and starting from a new Windows installation. But I need my DVD drives to work so I can boot from the Windows 7 disc. So I need to fix my SATA problem first.

Any help would be extremely appreciated.

Thanks