I appreciate all your input. I have decided to revisit my plan at a later date after I've gotten a better handle on how much data I have that I would need to move from desktop machines. I still hope to bring email in-house next year, but the SAN project (if it ever comes about) will probably be put off for awhile.
In the meantime, for D/R purposes, I am going to see about getting a tape library with a good maintenance contract. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin