I do the firm videos for my weight training and want something new. I bought Power Hour but have yet to try it, tho it looks awesome! I have dumbells ranging from 3-12 lbs. Do I need a barbell for this tape? I'd like to purchase MIS as well... can I use dumbells for this tape too? If I can afford to purchase a barbell, what kind, how much will it cost, and where should I buy it? I want to work with these 2 tapes using dumbells in the meantime, and any advice and suggestions are much appreciated! Thanks to the educated cathe crowd!