yeah that's what I'm looking to get a small refractor for, as a piggy back scope for guiding me astrophotos (sadly, the lxd55 mount can't be autoguided!

) I'd be looking at the 100mm though cuz isn't the rule of thumb something like half the aperture for a guidescope? It would also be a great grab and go scope.
don't AO stock saxon stuff? i can't remember. If anyone knows of a sydney dealer for saxon stuff, i wouldn't mind popping in for a peek.