Trying to get fit!

Sooo, i'm not fit. I know i'm not really fat - but i also know that i'm not fit, and that i should be. I can't really afford to go to the gym frequently, and probably wouldn't feel very comfortable doing that anyway, having not really used one since my GCSE days, when i just used to run and row my way through our gym lessons. Now i think i'd have to stop after 10 mins!

My solution? A fitness dvd. I can work out when i have a spare however-long, and can do it without other people around me watching me go all red!

I really love dancing, and so i'd love to get one that i could dance along to, but my problem is that i'm really picky, and want to make sure that what i buy is good. Soo, that's where you guys come in. I don't know how many people are actually reading this, but if you are, and know of any fitness/work out dvds that are good then can you let me know?