ive two Pcs , P4 2 ghz ,Intel 850MV ,512mb Rdram , HD 10 + 40Gb and the new ones P4 ,2,6 ghz ,Asus P4 PE-x series , 512Ddram PC333, HD 30 + 40gb when i render poser figure with dynamic cloth or hair , both computer give me very slow response , and i think i should upgrade memory to 1Gb , My question is , in my county and town 1 GB DDRam Pc 400 cost like 1 GB Rdram PC800 , which one i should buy , because i think Rdram more powerfull ( ive trying in several job for video and render) , but its lack in next support , and i`ve never trying the DDram PC 400 thanks for help jibriel