The D5000 is essentially a D90 squeezed into a smaller lighter body (of course it lacks the internal AF motor, doesn't have as good a grip, and has a slightly smaller pentamirror viewfinder instead of the pentaprism in the D90 - all of this amongst a few other things, but hey it's cheaper for a reason - also it is mentionable that the D5000 has an additional live view mode, a few more in camera editing tools, and more scene modes compared to the D90 - all useful for someone new to the DSLR in the sense that you can learn from them or just use them to make your life easier and your photos look great).
So far I love it. It is simple to use and great for those new to the DSLR realm, but it also packs enough punch for those looking to upgrade and will give newcomers much room to learn and grow with it.READ MORE
NIKON d5000 review