My computer can (theorically) run Rage but experience tells me the closer you are from the minimum minimum (or even recomended) requirements, the worse your overall experience will be.

Rage specs are not THAT bad, but since it's an IdSoft game, I have it stuck on my mind my computer will crash and burn trying to run it.

This is one of the few times I envy console players. A 2005 Xbox would run it no problems, and it's a 7 years old machine by now. A 7 years old computer is a relic of ages past which you show for your grandkids while talking about the good old days.