Many thanks
Yes there was a fair bit of amp glow but thankfully it doesnt come out too far, though I can do a dark subtraction if need be, though for the way ive cropped it, it doesnt seem necessary
The 350 D does seem good though I heard the D20 turns off the amps when taking time exposures, so it has no amp glow at all.
Yes Id love an Sbig (and a laptop to run it) but alas thats all way out of my price range
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The off axis guider is great as I have the confidence to keep going on those long exposures without the worry of flexure, though it takes some concentration to guide on the off axis comatic guide stars particularily with a hand Dec control.
Scott