Plan on spending roughtly:

$650-$700 for bare bow (preferable BowTech)
$125-150 for real good sight
$75 for a good rest
$30 for a quiver (match quiver brand w/ bow brand for best performance)
$60 for 6 carbon arrows
$60-$100 for good release

For all top of the line gear, plan on spending $1000-$1200 for a complete setup. Although you don't necessarly need all the best equiptment to be a good shooter. It is all about what you are comforable with.