Windows 7: Windows 7 Doesn't Load from Harddrive or DVD

The other night we had a power outage. The next morning I booted my computer only to get the "Windows Repair" or "Start Normally" options. I chose Normal to begin. Windows never loaded after almost an hour. I shut down and chose Repair the second time. Windows loaded files but never booted into windows after even a couple hours of letting it sit. I bought a new harddrive thinking that might be the problem. I've tried booting from the Win 7 DVD on both the old and new drive. I get to the "Starting Windows" screen and it just sits there on both drives. I've let it set for as much as 4 hours. I've looked through the forums but have not found this exact problem. I've tried the AVG boot disk and it crashes also. Any ideas?

After 3 days of searching through the forums I finally tested my memory. I had ONE bad stick of RAM. After removal...it works fine.

Use the mem test that is linked in these forums.

Thanks!