I will get some new videos up on the weekend. Barbie actually offered a 'roll over' tonight even though I didn't ask for it. So now she offers sit, then lie down, then paw, then roll over.
Bender is getting commando now, though he does it slowly, like houndstooth's description of the 'Old Yeller Routine'. Bender is definitely slower on the uptake than Barbie is.
Here is a picture of me and Barbie at obedience class taken by my lovely friend Kim.