Well, if you download the Live CD, it will be an ISO. Burn it, and boot up your computer with it in. It will load up inside ubuntu. You can even use the OS from the disc

From here, there is a partition and install wizard.. Does it all for you

You can even get cannocal to give you a free disc of it, but it takes a few weeks..
If you want to get a disc of it rather than download the big file, ask and i'll find you the link