I've upgraded from a spiderbox 9000HD and I wouldn't say I'm technically minded like most here, but aside from one issue (see recent thread), it's simple enough. Don't worry about telnet etc, very easy.
Damn your name, I should have thought of that roud:
Even I managed to set one of these up, just installs new images very simply from usb and as long as you can get ts panel on thereyou can install most of the required files from that.