I have the Hardcore series Kick Max DVD which I LOVE! And I've also done Kick, Punch, and Crunch on FitTV. I would love to buy some more Cathe DVDs for Christmas, but most seem to require a step, barbells, etc. I don't have a lot of space, so I don't wish to purchase a step or barbells. I have hand weights and could maybe purchase a ball - are there DVDs that would be a really hard workout but that don't require much equipment that you'd recommend?? Thank you!!