Can i create a disk partition and install SL onto it from my disks I got with my iMac

I want to start learning how to use the Terminal and how to start inputting and outputting data via the Terminal. I thought that I could create a small partition on my hard drive and then install Snow Leopard onto that partition (so that while I was learning how to use Terminal commands I would not wreck anything.)
It then occurred to me that by doing this I would also learn how to install OS X.
Can I do this?
Does the disks I got with my iMac have a limited number of installs? Because if they do I don't want to use them up in case I have to reinstall at any point in the future.
Do those disks have a full version of OS X Snow Leopard on them, or are they just for repairing the version on my system?
If I was to create a partition, when I delete that partition will I automatically get back the space?
Is what I want to do hard?
Can someone please give me some guidance before I begin doing this?
Many thanks
Jason

The OS X Install Disc that came with your computer is just that a full licensed copy of OS X for your system, it can be installed as many times as you would like but it will ONLY work on your machine. The only limitation to those discs that I'm aware of is they are machine specific.
My suggestion would be to get an external HD and use the Install Disc to install OS X on the external. Don't get a cheap USB drive, get the fastest drive (at the moment that would be Firewire 800) you can get. Drives I'd recommend are Lacie Quadra d2 series, G-Tech G-Series and OWC (www.macsales.com) Mercury Elite Pro series. This would be a much wiser strategy than partitioning your internal drive, that way if you real create a major mess it won't affect your internal HD.
Roger

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Good thing to mention that, I forgot to do that.
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D

Hi Grant,
Thanks for assisting me with this.
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http://store.apple.com/us_smb_78313/configure/MC561LL/A?mco=MTg2OTUwMTk
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