This is for my dad, he's a fan of his current PC's GT 640 (which is overkill for just watching streaming hd content, but he's that kind of guy.) Anyways, he's asked me to build a PC for him specifically to do nothing but Blu-Ray/DVD and web browsing for a 50" Samsung LED. If he was gaming I'd know what to pick, but it's only for streaming purposes. His budget for the GPU is $100 for this build. I'm just not sure, for streaming purposes he really doesn't need over 1GB of DDR attached to the GPU right?