Windows 2003 AD Hardware Recommendations

Hi – were looking at upgrading from NT4.0 to Win2K3 (at last!). We have a distributed network over 15 sites with around a thousand users, 800 clients and 80 servers (exchange, sql, logon, file print and citrix.

To prepare for the migration i’m wanting to replace each logon server with a HP DL???. I was thinking a DL360 with 2 76Gb SCSI drives.

Is there a recommeded configuration for a server to run AD? Mirrore pair, RAID5, one or two partitions?

Ive looked in quite a few places but cant find any resources. i did come across the adsizer for Win2K but i’d like some on the field comments.

Any information would be appreciated

Julian