I just got word that Addi Turbo will have their own circular set available in late October (I ordered several). The set includes tips in sizes 4-15, three cords (24,32,40?) and some connectors in a case. It was hard to tell by the photo but it appears to be a hard case. It retails at $149.95.
This would make an awesome holiday gift so if you are interested, just ask us to put it on your own personal wish list. Then place some hints with that special someone.