I was just at Big 5 yesterday and they have the bands. They didn't have the Cathe tubing, though, so I got a different brand. I had ordered the Cathe tubing through Amazon, but it appears the seller may be flaking out. I was notified by Amazon the other day that they have not received shipping information from the seller and that I might want to contact them to see if I get a response (the bands were supposed to arrive between the 23rd and 26th). So far I have gotten no response from the seller -- Cardio Warehouse -- so assuming they don't arrive tomorrow I'll be letting Amazon know through their claim process.
Oops. Sorry for the hijack!