i have four drives and i building a new system actualy 2 but 1 right now. i have 2 ibm gxp 60 gig 7200 rpm 1 80 gig maxtor 5400 and a 30 gig maxtor 7200. my question is how should i set these up . two will be in raid o and 1 will be for the main os and 1 will be the dump . my first thought was the 30 gig for the os two 60 for the raid and the 80 for the dump , second idea was 1 ibm for the os buy another 30 gig 7200 and use them for the raid and the 80 for the dump and the last 60 for the other pc. does anyone have thoughts to this or experience running this many hard drives .some of my fears is that 120 gig raid might be to much and i dont want the system going down everyday please anyone post your ideas thanks