^ korek... kani, dako ni'g matabang sa electricity bill labi na, iCafe or even single desktop but w/ multiple HDDs... use a 2.5" HDD instead of non-green (any brand) 3.5" HDD. nowadays, 2.5" drive's rpm is at 7,200 naman... power consumption wise, dako2x gyud ug difference ning duha...