bit of an update..
Uninstalled SOPHOS (as per reply)
Checked PERC config for cache method (writebk) per reply
After many hours of doing this and that with Dell they decided to replace almost everything.. Motherboard, Backplane, Riser, RAID Card, and the one hard drive that had failed twice. the tech who came out then tried to get the RAID arrays back online. The RAID 5 array showed up in the PERC as ready but the two mirrored dries showed up as installed but they could not get them to a ready state.. Unisys tech said he had never seen this before (gulp)!
Finally got server to boot though we are still having similar issues. We at least have been able to install SP2 and some other updates and get pretty good backups of some of the data. When I say some, I mean we can get relatively small amounts of data off to our Backup Exec server but anything large causes it to become unresponsive again. One of the partitions has 240 GB on it. We got 70 of it and then nothing. Interesting note, when we attached a USB drive and manually copied files it copied all 240 GB (took 4 hours) and never crashed. the major problem at this point is consistent at least in that it always ends in a Blue screen with error :
STOP 0x000000F4 (0x0000003,0x895b6a70,0x895B6BD4,0x8094C6E6)
A rare error I hear... I backed off the RAM amount to 2 GB just to see if that had anything to do with it (from 4GB) but no change..
I'll keep plugging away!
\Bob