I don't know how long it has been in their catalog, but I just noticed the "Homeschool NXT Extension Pack" (W991436, $88) listed on the LEGO Education website. What I can't find anywhere is a list of the contents for this kit. (I checked Peeron.)
Does anyone know of a content list for this set?
So it's a slightly cheaper way to buy those two items. You can find the inventory for the resource set at http://peeron.com/inv/sets/9648-1