Originally Posted by Hyper
Like Dimension 8250? That's what I have.
OK, i found a decent list of parts that you would normaly find in your particular Dell ---> http://www.shopping.com/xGS-Dell_Dim...kin_id-8001673
It looks like it uses a standard ATX power supply and a smaller ATX or perhaps micro atx motherboard. I'm guessing you could fairly easily upgrade to a normal SKT478 motherboard that supports DDR SDRAM. You could get a decent new board, a 1 or 2 GB DDR400 memory kit, a respectable video card and a nice headset for less than $250-$300 USD!
I definitely wouldn't bother directly upgrading the existing hardware inside that Dell... RDRAM is just waaaay to expensive and far outweighs the performance gain.