Gotta love the Net. This just in from Taco, who read an old post on Japanese toilets and found a needle in a haystack:
Search for "05-Toilet" on Google Images and the second result will be the Japanese-style toilet+sink combo.
This is from Donkeymon.net, an extremely articulate blogger who seems to be studying in Japan and studying Japan at the same time. (Thanks, Taco!) MGR