Vsta Home Premium 64 bit freezes @ Completing Installation screen

AMD Phenom 9950 (Quad Core) AM2+ 4MB Cache
BIOSTAR A770 A2+,PCI-EX, 1GB LAN (quad support)
4GB (2x2GB) PC6400 DDR2 800 Dual Channel
ATI Radeon HD 4850 512MB PCI Express 16x dual head, tv out
320.0GB Western Digital 7200RPM SATA2 UDMA 300 16m cache
Samsung LightScribe 20x DVD Recorder Dual Layer +R/RW -R/RW (black)
AC 97 3D Full Duplex sound card (onboard)
Ethernet network adapter (onboard)
Antec Nine Hundred Black Case, Side Window, front USB & iEEE
Dual Case Fans 120 mm Extra Quiet DC fan (two fans)
Antec EarthWatts 500w Extra Quiet ATX Power Supply SLI Ready
Black Windows Keyboard, 104 key, PS/2
2-Button Wheel Mouse, PS/2 Black

As I am trying to install my OS, everything runs smoothly until the Completing Installation screen after the first reboot. I once waited 45 min for it do 'something' to finish and it merely sits there frozen. I tried to google to solution and it has really not helped me any. The solution I did read is to get rid of my GPU and hook the monitor to my onboard graphics, but I do not have a proper connector for this. A poster said this might help due to drivers not being optimized, but im thinking my pc came w/ nothing on the HD so I see no reason why this would be the problem in the first place. Anywho, i really do not with to drop another 100$ trying to take this into Best Buy or some local pc shop for a solution ... so any ideas would be wonderful.

Thank You

Mihow