i have this peice of ram already http://www.crucial.com/store/partspecs.asp?imodule=CT6472Z40B&WSMD=CT6472Z40B&WSPN=CT6472Z40B. SHould i buy the same one again or should i buy the ballistix ddr400? Im into gaming and mostly 3d modeling, so rendering is something im usually doing. heres the ballistix stick, http://www.newegg.com/app/ViewProductDesc.asp?description=20-146-546&depa=0. PLease which one should I get?