@Greg_E yeah I can imagine, I dont think the ram does much except gives you some "margins" under some heavier load. With 12 VM's I wouldn't bother increasing it from the default values 🙂
Yea the mgmt interface in ESXi is nice, I think the standalone interface is almost better than vCenter. Im pretty sure XO Lite will be able to do more when it is done, for example you'll be able to manage a small pool with it.