I don't have a console, I play it on my computer, you guys should try it!
Go to: stepmania.com
It's a free version of DDR they developed, and you can get a dance pad with a USB port to plug into your computer (I ordered one from China that cost like 10 bucks and then 12 bucks in shipping).
So for around 25 bucks or so you can get a great work out at home without having to brave the gym or bad weather!
And thanks, I'll try the half hour every day thing until I can work it up to more!