Congrats on the win, zanadu. I hope you aren't getting too soaked on the shipping charges for that.
You will have no problems with PlayStation 3 games as they are region free. However, your local DVDs, Blu-Ray discs, PS2 games and PSOne games will not work as they are still region coded- you will need to buy Japanese for that (North American Blu-Rays will work as well). Another thing to factor in is your connection to the tv- if you aren't going high def you will need to get an adapter. The Japanese PS3's use NTSC/ J, not PAL. If you are hooking up through component or HDMI no worries.