Why 52 files patched? normally must be (and i think it's the same for all of us)

i can't see your snapshot... i download a 1kb jpg file.

Where system hangs? After upgrade normally the problems afflicts graphic and sound, but if you cannot login even in safe mode it's very strange.
Tried to boot with -v -F -x?
On a notebook i got on work this string made me boot after kext's problems (audio probs)

Sure is it not a video issue? try to delete from macdrive all the video card kexts..

I did try to boot with -v -f -x

It probably did patch 47 files. I could be referring to something else.