I'll put together a quote that takes into consideration the things you've listed but if we can talk briefly on ICQ: 4930562 I can definitely define the environment better and make some suggestions.
We have a large number of customers running large storage arrays and we really simplify the process for them.
If you have a chance please contact me on ICQ so we can discuss quickly your exact requirements.
We also have data centers in US (
www.RealityCheckNetwork.com ) and NL (
www.RealityCheckNetwork.nl )