You guys should not be scared, I am if I have to collimate my Tak refractor, scares the bejesus out of me, just the thought of it. Takahashi make a collimating telescope for refractors and SCT's etc, it is about 280aud and is a bit like a cheshire minus the cross hairs plus a mini telescope added to it..I got the instructions, and gotta admit it looks daunting, but apparently it works a treat. This is one helluva expensive hobby