Additional forms may be applicable. Domain Name registration is not the first step in setting up your online presence.
Many people feel they have to find the perfect name for their site.
You can use any free hosting service and use the name that they assign to you. As long as you advertise it right, you should be fine. Your visitors will just bookmark your site when there get there. Then anyone that just follows an old bookmark will know to move to your new address. Don't forget to change the address in your advertisements.