I think you need a bit more information.
First of all make sure you talk to a licensing expert at your VMware partner, and then check everything they say because this stuff is new (the View part).
Second. You need to decide if you are going to mix your work loads. You don't say how many desktops you are going to run but given you are only going to have 4 hosts for both servers and desktops its probably not to many. You can purchase View with the ESX licenses, but you can only run desktops and the servers required for View on them. Hence you would need to split that cluster and end up with islands of isolated resources. Or you can purchase ESX licenses and then "add-on" licenses for View (good for smaller sites that need/want to mix or for low consolidation ratios). For View you will need to decide if you want Premier or Enterprise version. View is sold as concurrent licenses, in packs of 10 or 100 (or there are starter packs to make it more complicated).
You can read the details here .
I would suggest that you want to get an Enterprise Acceleration Kit (4 hosts plus VC) and then add on your View Add-On Enterprise licenses in packs of 10 to give the concurrent quantity you want.
Tom has suggested you need a separate VC. At some point you will, it will depend on your scale and overall environment. Looking at the size you are talking about you are not there yet.
A few more details and we could help more. But find a good partner and get them to help, or VMware sales.
Keep us informed of your progress.
Rodos
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Blog: http://rodos.haywood.org/
Rodos
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