Does your price include insurance? Are you willing to go used? Also, what do you mean high end? Cars like X5, MDX etc??? If so, you can forget about it unless you put down almost half of the total payment. Just to give you an idea, I'm financing a 30k car (Mercedes C class) for 5 years and my montly payments alone are $500. And that's after I put down a few grand.
Edit: If you're lookign into pricing you may thing about purchasing leasewizard software. It has a database of all currently available cars. All you do is select a car, options, financing options and it gives you you monthly payments.