Very nice shot Humayun,
Like Davo said nicely focused and sharp.
Have a look at getting a moon filter. I bought a 2" Orion moon filter from Bintel. Havn't had a chance to try it yet.
Also maybe consider a 0.6x reducer for your 8", which will allow you to frame the moon and do widefield shots later with you 350D.
In case you where contemplating, I don't suggest imaging in B/W mode through the camera. What you did to desaturate is better.
Personally I like to keep it in colour, use the in camera noise reduction and if necessary run the image through NEAT IMAGE later, but don't overdo it.
Obviously use mirror lockup.
Did you crop the image because the top of the moon was oversaturated?
I'd leave it as is because now the crop detracts from the overall look.
I think you've done a top job with it tho.
Well done mate.