Best setup for a small iMac network with NAS?

Hello all,

Any recommendations on how to setup a small network with 3 machines and mutiple users?

We run a design studio and currently have 3 x 27" iMacs with a couple of laptops that come and go, that all connect to a Synology DS213 NAS drive. (All the iMacs are connected to the NAS via ethernet through a gigabit switch, so we have a reliable connection)

All 3 machines have just had their HD's replaced (all backup up to the NAS) and are currently blank canvases - so I'm keen to get a decent network system up and running that works well in conjunction with the NAS drive. They're all running 10.6.8, but I'm happy to put them on Mountain Lion and install OSX server. It seems most feedback isn't great, but I'm interested to hear any ideas,

Thanks in advance..