Thanks for the link,
jsq.
Castor:
The other thing I suggest is finding a "cardio addict" to be your workout partner. Picking another newbie is not nearly as effective. You want somebody who does cardio often and "can't live without it". You want to ask them to allow you to join them, and possibly give you some pointers/assistance. You want to ask them to have a set schedule for your workouts together. You want to ask them to bitch at you if you don't show up on time or at all.
This will give you an experienced "coach", a new friend, and extra motivation to work out properly and consistantly.
So, whatever cardio you choose to do consistantly, find a partner. Running partners are more easy to find than swimming or biking partners, but - especially if you join a gym .... you are likely to be able to find all of the above and maybe more.
I suggest picking a male partner, for better focus. But a female could be great too - and you may wind up with more cardio from sex. But, beware, the penis can shrivel during workouts - so maybe wear a wrap.