>>
>reverted the system to last known good config
Oh you poor bastard. That never works.
A repair install will get you up and running w/o reinstalling everything from scratch, but you'll need either an optical drive or a bootable USB drive (unless you're on a P2/P3, your system supports USB booting).
You can try starting up in safe mode and removing all nonpresent hardware (http://support.microsoft.com/kb/241257), then the pnp device enumerator, but you'll likely end up in the same boat because "some script" probably ratfucked your registry.
All you needed to do was look for yourself in regedit and delete some values, I've done it a million times. There's even a Microsoft technote on it:
http://support.microsoft.com/kb/817472
Look at the "Let me fix it myself" section. Quite simple.
]
[
class /
co /
eh /
fit /
halp /
jew /
lit /
phi /
pr /
rnb /
sci /
tg /
w /
zom
]
[
a /
grim /
hi /
me /
rx /
vg /
wp /
x
]
[
be /
cake /
cd /
d /
di /
elit /
fag /
fur /
gif /
h /
men /
pco /
s /
sm /
ss /
unf /
v
]