Please tell me what the absolute fastest model is? I have AceDirector layer 4 switch redirecting directly to squid. I have squid installed out of the box config standard transparent setup on a Compaq DL580 server Quad Xeon 700Mhz 2.5 G ram and 4 - 18 gig SCSI drives setup in two raid 0 for speed with RedHat OS. I Have 3 of these quad servers and am thinking of parent-child but need advise as to over all plan. This is being setup with 1000 web users in mind. Thanks for your help Chuck __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com