Crap. Need crap. No, not *THAT* crap, need a puter!

From: "" 
Well, my trusty mobo (or memory, don't know, just need it to work) is 
showing red lines om Memtest86+
Bunch or red lines.
Bunch of unexplained operating glitches too.
Time to switch, and I don't have time to switch. 

Does anybody know where to buy a mobo/proc/mem combo locally and cost 
Does anyone have something quad-core/8GB reasonably priced for me to buy?
Unless your answer is food for the list, please feel free to answer me 
Thanks!   :-)