Dude, don't get a Khalil Mamoun (KM) right away, especially if it's your first one. Get something cheaper like a MYA or something. I have a Kaya PN and it cost me less than half of what a KM would have cost me and it smokes just as well.
Check these out:
These hookahs will get the job done just as well as a KM. The stem even screws onto the base which makes it 100% air tight and easier for the hookah to tip over.
Take my advice on this, and I don't say this often, buy Chinese. When you're first starting out and you don't want to blow over a $100 on a hookah, these are perfect. They're also good for when you're an advanced smoker.