I came across this in a Gundam catalog and thought everyone could get some use out of it when looking for a kit. These are scans of all available kits as of February 2011.  They are ordered by series, so whichever kit you are looking for should be easy to find.  Of course,  to the right of kit name is three columns, letting you know whether there is a High Grade, Master Grade or Perfect Grade available.

 

Enjoy!