I don't think you're getting my drift here, mate... The OP pretty much seems to have already decided on the 8G - he wants to know 'whose' and 'how'. People are forever, at least three or four times a week asking us here "what MOBO should I buy?", or "VidCard?", or "???" - and my pretty much stock answer is "well, that's a bit like how high is up - what do you want to do with it?"
Is your main use gaming, with a sub-specialty in comparing frame-rates with your buddies for bragging rights? Is it a home office machine? If so, what version of office do you run, and how many programs do you typically have going at once? Or is it just a 'browsing appliance', with a little e-mailing thrown in? and, most important - what's your budget?! It's kind of like a shoe salesman telling the guy who's buying size eight boots that they're too big, without having seen his feet!