NETAPP and Sophos. (feel free to move the post to the right Talk)

I'm planning a big installation with two NetApp 6290 (4 controllers) and about 35.000 users.

Vfilers will be used for Citrix Profiles and File System use

Policies should be on write only for profiles (avoiding bootstorm) and some excludes (compressed files for example).

I'm planning to use the latest version 3.0 that can load balance between different controllers.

I will have 3 AV servers (64 Gb ram 2x8cores processors) physical servers connected with 10gbps links to EACH Netapp Controller.

So in total i will have 12 AV Servers.

I already asked Sophos and Netapp to get some case history or similar implementations. I did not get much from them.

is there anybody out there (Pink Floyd rule) that have a similar environment or can give me suggest on this?

That will be much appreciate.