MS Storage w/ DPM 2007 vs. Win Serv x64 w/ Backup Exec Sys Recovery 7

Our company needs a good near-line backup and redundancy solution. I would like to know if the latest Storage Server and DPM combo offer greater benefits over Win Serv 2003 x64 and Backup Exec 7 . Are either combo easier to work with, provide more flexibility, or hidden limitations?

We're a small company that provides fast graphic design support for business consultants. Often, deadlines are under an hour.

GOALS
1.  Regular backup of Sharepoint and SQL from MOSS servers to a NAS. Incrementals at 30 min or less.

2.  Mission completion: Create fast access to critical files in the event of main server failure. Local users can pull the files they need easily from the backup onto their desktop to complete a job that has a fast turn. Let the IT guys continue working on bringing the main server back online

WE ALREADY OWN
- Win Server 2003 x64
- Symantec Backup Exec Sys Rec 7

HARDWARE / OS
- Desktops: Mac and PC (Leopard, XP64)
- Servers: Dell 2900s running Win Serv 2003 Enterprise, MOSS 2007, SQL

CONSIDERING TO PURCHASE
- Dell DP600 with RAID 5 or just an empty Dell 2900 for our software

I'm looking at this from a business and operations perspective, but feel free to include any tech questions/considerations. All help appreciated.
vlipseyAsked:
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honmapogCommented:
I would says DPM is your best bet.
DPM is fully MOSS aware, giving you for example document level restore. This is something BESR cannot deliver.
DPM also does the 30 minute incrementals you require.

DPM also gives you end-user recovery. I wasn't sure if you needed the original server up to do end-user recovery. But http://blogs.technet.com/jeanie_d/archive/2005/11/10/EURbasic.aspx suggest you don't need the server up.
3 warnings about end-user recovery though. It does require the VSS shadow copy client, so your Mac clietns won't be able to do end-user recovery. You also need an Active Directory environment - I suppose you have this, but I just wanted to mention it. An end-user recovery is only available for normal file system data - not for documents inside Sharepoint.
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