Backup Exec with Dell PowerVault

We are using Symantec Backup Exec 2012 (version 14.0) running on a Windows Server 2008 64-bit PowerEdge server.

We are looking to add a Dell PowerVault NX3200 to our environment and configure it in Backup Exec as disk storage for backups. Has anyone used a PowerVault NX3200 with Backup Exec before? We are finding limited information as to the compatibility (specifically with Symantec's de-duping license) between the two. We are also curious if anyone has been able to utilize the multiple NICs in the PowerVaults. Would Backup Exec take advantage of teaming two or even four NICs together to achieve higher throughput with backups? How was the configuration process for you? Was it worth the extra configuration/hardware costs?

Thank you,
Mike