Am I over everyones head here?
Let me simplify the question here...
Should I and can I create one dvSwitch. For each network, create a port group and put it in the proper vlan. For the physical uplinks, connect them to my Cisco switch and define it as a trunk. Hey more links, more bandwidth right!
Or should each network/vlan be its own dvSwitch? Then I have to get creative with how many uplinks per network I want back to the physical core network. Less uplinks, less bandwidth.