Exercise? Cardio or Weights?

I've been going to the gym for 10 days now. I had been concentrating on
cardio, to see how I managed. But this also let me control my exercise, as
I was familiar with the equipment. I have my first 121 session with a
trainer tomorrow.

But I'd like some opinions please. Talking to a friend, her personal
trainer is recommending she only do weights, as this will have the pounds
"dropping off". I had never heard this before.

I don't care what type of exercise I do, as long as I do it. Whatever I do,
I'll probably not enjoy. (Unless someone can start a raquet ball club for
me in this part of England!) But I would like to at least do the most ideal
exercise for losing weight and keeping it off......

Let me know your thoughts!

Thanks

JD

262/208.5/140
Started 5th Jan, 2004
May Challenge 8lbs/so far 5lbs