I've become familiar with ngspice on Linux (Fedora 15). I even got syntax highlighting going for .sp files in gedit. However, when I describe the circuit in a SPICE deck I have no way of telling whether I'm even describing the correct circuit. Even if I get some kind of output or result, I may have connected a circuit element to the wrong node, which would give completely different results.

My question is if there is some kind of tool that takes a SPICE decks and draws the circuit described in them?