My Very First Moon Shot -C&C welcome

[tech]

Exif Data

Camera: Canon EOS 1000D
Exposure: 0.077 sec (1/13)
Aperture: f/45.0
Focal Length: 300 mm
ISO Speed: 400
Exposure Bias: 0 EV
Flash: Off, Did not fire
Lens: - Canon EF-S 75-300mm USM III


Questions:-

1) What can i do better when it comes to shooting the moon, any best practices
2) What should i look for while doing PP work on shots like these
3) Does it make sense to use a telescope for this type of photography ?

There were some other shots that i took, link to set below:-

Moon Shots - a set on Flickr