Here we go finally.
Here's the rack (minus backing insulation and flexwatt):
Here's the inside of a bin:
Here's a bin with the lid:
Closeup of the corner of a bin with a lid:
Closeup of the drawer slides (which are plastic):
And a lid by itself:
It was very easy to assemble.
Here's a link to the bins:
http://www.ikea.com/webapp/wcs/store...roductId=11181 - select Transparent and 16 1/2" x 11 3/4" x 4" for size and color. $2.00 each (the rack I got holds 6).
Link to the shorter rack unit (the one pictured here):
http://www.ikea.com/webapp/wcs/store...umber=30091452 - $39.99
There is a taller straight unit as well, and also some shorter stepped-style ones.
Link to the lids for the bins:
http://www.ikea.com/webapp/wcs/store...roductId=20955 $1.50 each
Ikea is still a bit weird with online ordering - even just for lids, the shipping is outrageous, so it's best if you live near an Ikea to just go to the store and buy everything there, but for a total of about $61 plus a few bucks more for heating and insulation and some minor modification to the lids, not bad for a juvenile rack.
The bins have a nice rounded groove around the outside of the bottom that would probably be good if water gets spilled - some water can go into the groove and the middle section will still stay dry, but there aren't any sharp edges in the inside, either. The lid fits completely flush into a recess in the bin, which is why those little turn buttons would be able to keep the lid on.