What is better is the photographer, not the camera. I've seen 300D photos better taken than the D70, and vice versa. It's the man behind it that controls it, not the camera itself.
See these pictures for yourself. They're taken only using the Canon G3.
http://www.pbase.com/kimr55760/minnewawaarea
My advice to newbies is this: don't just go into a super good camera, thinking you can take excellent pictures with it. Remember, it's YOU who take control of the cam, not the other way round. Of course, if you have the money to throw, one cannot stop you, but think very carefully before you commit. Camera and photography is a lifetime thingy. Make sure you know your stuff first.
I've seen numerous newbies spending lots of money on DSLRs. In the end, they blame the cameras for not being able to output their desired shots. What I suggest for newbies is to get a point and shoot first, like the G3/G5, with rooms for you to explore. Take 2-3 years to familarise yourself with the camera and techniques, then move in to DSLRs and lenses. By then, you can save yourselves a lot of questions on what to buy, since you already know the basics.
May sound harsh, hope everyone don't mind. I'm just speaking from my heart. :sweat: