Best DSLR for indoors/low light/outdoors/landscape?

My D5000 is my first camera and I got the kit lens and a telephoto lens with it for around $650. I think it's a great starting camera unless your going to make a living with it. The lenses are very sharp for outdoors. I did have problems with the kit lenses indoors though and bought a 50mm for $130 and problem solved.