<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">As several people have suggested, partition your external into 3 volumes using Apple's Disk Utility. However I would suggest using an excellent utility called SuperDuper (as in duplicating). I've found it to be a more dependable utility for cloning drives (compared to CarbonCopyCloner) and can also be used for free. If you pay the $27 shareware fee it allows you to do Smart backups (incremental) and schedule backups. <DIV><BR class="khtml-block-placeholder"></DIV><DIV>It makes bootable backups (you can boot FireWire drives only, not USB) and is great for restoring a drive, as I had too recently after sending my PowerBook to Apple to have the optical drive replaced. Oddly, they also replaced my hard drive which was working perfectly.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>-Mark</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR><DIV><DIV>On Nov 14, 2006, at 7:16 PM, Pat wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 11.0px Helvetica">Okay, I finally broke down and bought a Simple Tech 160 GB external drive.<SPAN class="Apple-converted-space"> </SPAN>Until now, I've done all backups on CD's, but now I have the room to backup my iBook, my TiBook and my iMac all on the same drive.<SPAN class="Apple-converted-space"> </SPAN>But, how to do it as they all run different systems. <SPAN class="Apple-converted-space"> </SPAN></FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Helvetica; min-height: 13.0px"><BR></P> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>