We have narrowed it down to the EMC CX4 and NetApp FAS2040.
OK, I will admit upfront - I am huge fan of NetApp (although I do not work for them :smileywink: ), so actually I see more reasons to pick FAS2040.
First & foremost it is truly multi-protocol platform with native capability of provisioning storage via FC, iSCSI, NFS & CIFS. Two first protocols (both included in base price) gives just a choice, whilst NFS is massively interesting alternative for provisioning storage to ESX hosts. Last, but not least, having CIFS means you don't need Windows file servers any more, be it physical or virtual.
So, in my opinion, in terms of flexibility NetApp wins! :smileyhappy:
If you want any additional reading:
Landing page:
http://www.netapp.com/us/solutions/infrastructure/virtualization/server/server-vmware.html
Top Reasons to Choose NetApp with VMware :
http://www.netapp.com/us/library/top-docs/ds-2803.html
NetApp and VMware Storage Best Practices for VI3:
http://www.netapp.com/us/library/technical-reports/tr-3428.html
NetApp and VMware vSphere Storage Best Practices:
http://www.netapp.com/us/library/technical-reports/tr-3749.html
Regards,
Radek