no reason to get SAT 6.0 GB mechanical hard drives. they're really no fastre than SATA 3.0 GB drives.
the difference in teh PSUs is the first one is 80+ Bronze, which means its more efficient than just 80+, and usually higher quality parts. Its also on sale from $79.99 to $64.99 through Weds, its the better buy right now.
of your two choices, I'd get the GTX 460