> I am thinking about pulling the C: drive out of the XP PRO machine and > putting it in the new machine. I will have to consider the risks first... As a backup or a way of accessing its data - if it suits, probably no problem (although, very occasionally you can get mysterious HDD manufacturer A / HDD manufacturer B conflicts which don't obey standard rules. Less common as everything asymptotes towards being from manufacturer A anyway. . As a boot drive, try hard not to do it.. Even starting it up on a new motherboard MAY cause problems (for quite a wide range of values of may). Once you start loading drivers for the new MB you MAY not be able to go back and you may find it doesn't go 'forward' enough to suit. The cheapest SATA drives here are just over $NZ50 for 320 GB or about $US35. A new boot drive is a worthwhile thing to overspend the toy budget on. Chances are that it is > to >> the size of C now. And, if you keep the old machine running it is available as backup, toy and heater. (The last becoming increasingly important to avoid when you don't want one). R -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist