I have previously gone for http://www.bagworld.com.au/shop/detail/samsonite-itineris-luggage-78cm-hardside-suitcas/ Skyspinner 79 cm. which is a bit big for the trend of airlines going for 23kg limits on checked luggage and with the piece systems in place I feel I will need to buy some more luggage. I love this model and design and think I will go for Samsanite unless anyone has any better suggestions but when I looked online there appears to be all different models of Hard shell luggage than what i recall. http://www.samsoniteaustralia.com/hardluggage.html I love this design as they have 4 wheels, light, lots of space inside and does well to keep up with wear and tear. Does anyone have any suggestions as to which is best? I'm thinking 2 x 61 cm Cosmolite or something like that. Perhaps anyone who has had to buy new luggage recently with the new change of rules.