So far I have a stickie (yes, I have a mac now, albeit a slightly tired but still servicable ibook - thanks Sal
!) with the following on it as potential names their japanese meanings(ish) in brackets:
Gabba (gaban - drawing board. this one is named for the techno, not the japanese meaning!)
Daichi (great wisdom/land)
Tenka (contraction from tenmonka, meaning astronomer, 'cos his pedigree name is stargazer)
I pretty much only have photos of him asleep at the moment, as the rest of the time he either comes out a white blur, or he tries to eat the camera.