Extending Mobile Me by using trial first?

Hello

I've spent a lot of time lurking in these forums and really enjoy the great information here.

I'm planning to purchase mobile me (despite the recent headaches). I'm mainly after it to host a simple website.

I'm going to purchase another macbook and get the $30 discount off mobile me.

I was wondering if it is possible to sign up for the trial first and squeeze two more months out of the deal. Before the trial period expires, I would open up my mobile me box and use the activation key to continue its use.

I was all ready to try this but while I was signing up for my trial, I had to input my credit card number and that gave me cold feet. I don't want to pay for my subscription through CC. I'd rather do it by buying the box. I loathe to give away my credit card information especially with all these phishing scams around.

1. If I give my CC information, can I take it out later after I've activated it with my code from the box?

2. If I just start my subscription straight from the box, will it still require me to input a CC number?

3. Right before the Trial ends, if I don't "renew" with the CC, can I activate it with the box and STILL KEEP THE SAME ACCOUNT that I've started with the Trial?

Thanks for the help.