No it's not. There are 2 HUGE issues with doing this. First, you move the debt from an unsecured asset to a secured asset. If you don't pay your credit card bill, there isn't a whole heck of a lot they can do. They'll eventually sue you (maybe), but that could take forever. If you don't pay your heloc (due to job loss, emergency, whatever), they will take your house. Second, most people that take a heloc to consolidate debt don't change the behavior that got them there in the first place. So they run the credit cards right back up because they feel like they accomplished something by "paying off their debt". Of course, they didn't pay off anything. The Coopers did that (his check against his credit card bounced).
How about just pay off your debt, cut up your credit cards, and pay for the stuff you buy with money. I've been debt free (except mortgage) for 6 years now. Life is so much calmer this way. Another 7 and I'll be mortgage free as well. I'll never borrow another dollar as long as I live.