from the original 2 options, i wud recommend xp90 since i'm not fond of passive cooling. scythe ninja does kick other HSF's butt(if u kno wat i mean) but the weight n size of it, i definitely kenot tahan ar. thus, living happily ever after wif my Si-120. kudos tu DaEMoNteNTAcLe for his recommendation, dat is. or mebbe it was another guy?? 4got liao.