My system;

Gigabyte GA Z77X UD5H
i5 3570k
8gig ddr3 1600Mhz.
LG Blu-ray burner
SATA2 80gb WD hdd
TP-Link PCI Express Wifi Adapter
Corsair Enthusiast Series TX650M PSU
Cooler Master Hyper 212 EVO

All my systems seem to be working with 10.8.2. My on board NIC worked out of the box. When I run the 10.8.3 update, I get the light gray background screen with the Apple and the spinning wheel, but it does not boot up fully. Any ideas?

Thanks in advance,