Livewire,
Like Van says, it's not the spraying that's hard, it's the prep work. 95% of a good paint job is the prep/bodywork. The spraying is easy.
Go to the JY and get an old hood, preferably one that's kinda jacked up. Do the bodywork/prep on it and primer and paint it. It'll be good practice, and once you have the knowledge/experience, you'll have it forever!!
Hell, if it comes out perfectly, you can slap the hood on your car, and you'll have one less panel to do. If it comes out crappy, strip it down and try again. Lots of work up front, but like I said, once you know how, you know how!!
Tim