It would be nice to have the ability to set an admin slot that can only be taken by someone entering the server using the admin password.

It's been suggested a few days ago, and Scawen has noted the request. It will be added at some point (but don't get your hopes up of it being in the next patch, more likely the one after).

Great. Think it's something that's needed more for the demo server runners but would be handy all round

if i need to do anything with me dedi, i just hit the button on me KVM swtich.. but if i wanna get in me server when its full, i just wait till the next avail slot..