How to setup iTunes on shared computer so others cant buy music at my expns

Question

I want to use iTunes on my work computer (which other people sometimes use) without allowing others to purchase music on my credit card.
Background: I've been using iTunes at home for 2 years and had an iPod for 13 months. I like how iTunes works.
I staff an elementary school computer lab. I have 500-1000 mp3 files there that we've played in the past using Winamp or Windows media player. But I prefer how iTunes works and organizes music and I'd like to use it there.
I recently installed iTunes on my admin workstation at school and I am moving our music into its library. But many iTunes features will not work unless I set up an account with a credit card for automatic purchasing. If I do that, how can I prevent others from making purchases on my credit card?
Yesterday I signed in there using my apple id. But I notice that moved my shopping cart and that only two clicks will add purchases to my credit card.
I have a coworker who uses this computer every morning, and other teachers and students use it from time to time. I don't want them to accidentally make purchases on my credit card.
I do not plan to move my home iTunes library (about 6000 items) to the school computer nor to synch my iPod there.
So what should I do? Set up a new acct there with a credit card that I seldom use? Is there any way to require a password for purchases but not for using the iTunes library and store?
IBM NetVista   Windows XP Pro   public computer

Answer 1

I think I will set up a separate acct name and
password, different from what I use at home.
> Don't do that.
You iTunes account is not linked to specific computer
or location.
If you set up a different iTunes account, you will
have songs from 2 different accounts you need to keep
track of.
There is no need to ever have to create a new iTunes
account. If you move, get a new ISP, change email
addresses, etc. just change your account to reflect
the new stuff.
Thanks, but I already did set up a new acct today, with a password required. I used a password that my job partner also knows and an old credit card I never use. I did that because I noticed iTunes wouldn't let me download there the weekly free music that I had already downloaded at home.
I thought there was a limit of 5 computers you can have music on. Is that right? I have shared a few purchased songs with my son and my uncle, which required me to authorize their computers. (ITunes said my uncle's was #4, which means there's another mystery computer somewhere authorized to play my music!)
I'd like teachers to be able to buy a song they need by giving me $1 and buying it on the spot, rather than expecting me to look for it at night at my home.
I think this will work. We'll see ...
IBM NetVista Windows XP Pro school computer lab
Windows XP Pro