New to Dell Servers (coming from HP servers and management)

I have worked almost exclusively on HP servers with the past 5 years being almost entirely with HP blades.

I now work for a firm that is all Dell PowerEdge servers (r730 is current standard).  We have about 70 vSphere hosts using multiple X520 and i350 NICs and Qlogic 2562 HBAs.   None of these devices are Dell branded.

We are using the latest version of the OMSA plugin for vCenter.

Does Dell branding matter when it comes to upgrade-ability in IDRAC/LifeCycle manager?  

Should I be able to see and upgrade the Qlogic HBAs from IDRAC.

The i350 cards we using could be V1 or V2 and are mixed our servers.   Some of these NICs dont report FW in OMSA and are not upgradable.

Is OMSA the best tool for our environment?    Is there a best practice doc for OMSA/IDRAC for vSphere hosts?

Thanks,

-Matt