Purchasing Computers in Japan (vs UK)

I will shortly be moving from the UK to Tokyo and am trying to decide if I should buy a desktop/laptop before I leave the UK or after arriving in Japan.

Does anyone have any idea re: how prices compare between Japan/Europe for the same laptop's/PC's/monitors etc?

Also, if there are any other pitfalls (Japanese style keyboards, power supplys/voltage differences etc..)

Thanks

You can look up some pricing on sites like kakaku or yodobashi camera:-
http://kakaku.com/
http://www.yodobashi.com/

Almost all laptops now have a power supply which will accept different voltages around the world, so usually you just need a plug adaptor, or at worst a new plug.

If you buy in Japan usually they will have a Japanese operating system.

I guess it depends what you plan on doing with it while you are there. If it was me I'd buy a laptop at home and take it with me.

You can always buy a LCD screen, mouse and keyboard in Japan and use that with your laptop if you wish to use a larger display/better keyboard etc.

Enjoy your stay!