Hey Roseman,
Because I am experimenting too, I was curious if you have booted in -s single user mode, or -x safe mode with the ANV mach_kernel_dp4_atom_apic kernel? Have you gotten any further in the boot process? In the past I have disabled just about everything with regards to kexts and startup items and found I wasn't having a kernel problem but other system files weren't playing well with each other. I was able to use older files to at least get booted in safe mode. Just wondering about your troubleshooting efforts so I don't duplicate over here. -thx