probably has nothing to do with Bluetooth, what version are your installing? what did you do to install DP1? Probably from all the PS/2 stuff. Got a usb mouse and keyboard to use while installing and get that junk out of there?
I don't think this has anything to do with your ps2 kexts. I think you have the same issue as me - video kexts not loading. I don't think ML supports the Intel 4500MHD. I'm assuming that's your video card. Right?