Thanks for the information Mitchell, dont worry I ramble as well, at least yours is informative
Thanks as well to Bojan for the barndoor link. I'm going to construct one of those soon. Also, if there are any viewing nights that you plan on organising in the near future, please inform those of us in the SE of Melbourne. I would really like observing with others, not only for the knowledge gained, but also for a bit of rambling
Thanks again to everyone for their advice.
Cheers,
Greg