Im not too sure what the Rebel comes with for a lens. But both the 20D and the D70 come with a pretty nice potrait lens I know the D70 is a 18-70mm and I believe the D20 is a notch below that . You should also now be able to pick up Nikon AF Nikkor 70-300mm (telephoto) for under $200 now.
But the lens that the D70 and the 20D come with are perfect for shooting subjects (rappers, concerts, landscapes)