Cameras and lenses are a vast subject and choice depends on exactly what sort of photos you wish to produce and how you wish to display the images. I doubt if there are any better cameras available in Japan than there are in other countries and if buying abroad you will have to pay customs duty and VAT when you return to the UK (assuming you are in the UK) . If you are a beginner you might be a bit perplexed by all the modes and facilities available on a 'high end' expensive camera.
However, as you have asked, here's a suggestion for a user friendly model which would be suitable for a beginner and is expandable into a system camera and capable of professional results - and it's compact too.
Consider the Olympus Pen E-PL1 ... it's very suitable for a beginner
http://www.dpreview.com/news/1002/10020 ... enepl1.asp
http://www.photographyblog.com/reviews/ ... l1_review/
Good luck
dunk