I'd said I wanted to put the OS on my new computer. So, I got it home from the shop and attempted to install the 64-bit version. It stopped booting up at about the same stage yours does. I could get into Safe Mode and sometimes start normally from there. I tried everything but in the end, took the computer back to the shop. He did the one thing I was a bit worried about trying. He updated the BIOS. Not a hint of a problem since then.
My computer build is very different to yours but I thought I'd sign up and mention this because the symptom and the point of failure in the boot-up sequence is similar. I hope it helps.
(Asus P5Q-EM - Radeon 3850 - Intel Quad core).