<< Can i drop a solid unoced 933 or ghz into it? >>
With a Radeon(i've tried), NO..... It won't go above 135. So with a 933 you are not gonna reach a gig, better off trying with a cooled 700mhz c-core.
Overall, i've had no problem with the machine i've built with it, but, i wouldn't put it into my "best buy" list