Success! Steps I took:
1. Cloned drive with CCC
2. Download combo 10.7.3 update
3. Installed combo update
4. BEFORE RESTARTING, Ran MultiBeast w/ settings:
a. System Utilities
b. ALCxxHDA and AppleHDA Rollback
c. Lnx2Mac (just precautionary)
5. Restarted with successful boot to 10.7.3
6. Repaired permissions with MultiBeast
7. Installed toleda's 889 AppleHDA kext with KextBeast
8. Repaired permissions once again with MultiBeast and ran Kext Utility
9. Restart
10. Successful boot with no issues thus far on 10.7.3
- GA Z68x-UD3H-B3 (rev 1.3) Running F10 BIOS
- GTX460
Definitely took too many steps here, but I figured better safe than sorry.