wow
wow... that is just so wrong on so many levels... lol
i can answer the first question, but the second is just so incorrect and confusing that my answer would be undoubtedly incorrect, i am sorry.
anyway, on to that, well... question...rambus is dead. All of the parts and boards we are talking about will only accept ddr, there are different speeds and makers. I would suggest pc3200 and up, and the company could be any reputable one(geil, corsair, twinmos, samsung, kingston, ocz).
ok... what the heck i will try for that second thing..."this 800ddr" is not ddr. the ddr would be ddr 400, or 200 fsb. the 2.4 refers to the processor or the "chip". ddr is not a chip, it is a stick of chips. oh and if you meant ddr800 that would be 400 fsb which you would have to overclock higher than any man has done before to get that high. the 800 is the bus speed, this is an upgrade from the previous 533 on intel systems, but the system still runs at 200fsb by default...
I am not sure if i answered your "question". I am not sure what i did (my head is about to explode)... I hoped i helped you, because i know that just hurt me.
excuse me i have to go take a nap.