iPhone help

[LongLang]

I am having trouble with iTunes and it not allowing me to add music to my phone.
I had I tunes on my laptop, and had my iPhone set to manual sync mode. My laptop gas since stopped working and I have bought another.
The problem is I can't add music to my phone now through iTunes because it is registered to the other computer, unless I lose all the music I have on there already.
Is there any way to change the settings so that I can sync my music from both laptops? I don't want to have to start again.
I have googles this as well before I get any "lmgtfy" links.
Can anyone help
Thanks<br /><br />-- Sat Jul 24, 2010 8:36 pm --<br /><br />Mods can you delete this one please. Stupid thing has gone on twice

 

[rushts]

My phone contract is now up and i'm gonna go for the iphone 4, just a quick question...
the tariff i will prob go for will have a data limit of 1gb. Now i won't be downloading music ,films etc just browsing on t'internet and downloading apps. can someone in their experience give me a rough guesstimate at how long and what i will get for 1gb per month, i would guess i would be an average user, (ebay, bluemoon e-mails), and do you get notified when you are up to your limit as i presume you will get hammered for going over. Thanks.

 

[LongLang]

I have had mine for 3 weeks now and I have hammered it Internet/apps store wise. It says on mine "unlimited data" but has a fair usage cap of 750mb. I have so far used under 200 meg. Although I do connect to various wifi points.