We really can't answer this because we don't know the prices of stuff in your area. Take a look in your newspaper at places that are leasing. Then you'll get an idea of the price range. You usually need first month's rent, last month's rent and a security deposit. From there, see what your parents(or whoever you live with now) will let you take when you move. What essentials will you need to buy before you'll be able to function?
The last step is to see what utilities you'll need to have set up. Depending on the place, you may have most of them included in your rent. Or you could have none. Make sure you have enough to get those hooked up in addition to the rent money.
Hope this helps you figure it out. :)
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kid, I wrote back,
all lovers betray.