Upgrading Nikon camera?

I have a Nikon D3000, this camera is more of a entry level type dslr, what's the next best one to get as in a semi pro type dslr can you please recommend Nikon dslr's as I have some lens that fits Nikon F mount camera's

Get the Nikon D5200 http://www.amazon.com/...lectronics. A much more professional camera than the D3000 which I think is very much out dated. The D5200 has a much better sensor (24.1 mp) as well as better stabilization, an better features overall. It also has an excellent auto focus.

The D5200 is not enough of an upgrade as it is still an entry level DSLR and lacks many of the same features the D3000 lacks, such as no in-body focus motor, no speedlight remote commander system, and a fairly mediocre shutter delay.

The next level up (advanced amateur) is the D7100 or D7000. They are advanced systems with in-body focus motor (they can autofocus AF lenses), they can remote control a speedlight in iTTL mode, and they have a very low shutter lag - which is crucial for sports and action photography.

Go for the D7000. That will be compatible with your existing and old lenses. The D7100 is a good choice too, but at current prices the D7000 is a lot of camera for the money. It is unlikely that you really ned the extra features of the D7100 for the extra cost.

If you can't afford a D7000 body then take a look at the D90, which is still a pretty good camera and will still work with the old lenses.

You will only feel a true upgrade if you get the D7100.

If you want a true upgrade, Go for Nikon D7100. Nikon D3200 is also a good one but if you are looking for perfect upgrade then i recommend D7100.
Here is a review from a professional photographer, i hope it will help your decision:

http://www.amazon.com/...5IIQ2S4FQ/

It is a 24.1 MP DX-Format CMOS Digital SLR. There are a lot of features upgraded in D7100, I would like to mention some over here as a comparison to D3000.

D7100 Shoots Full HD (1080p) video as well as still pictures
The D7100 has excellent image quality 1.2 f-stops higher ISO than the D3000
Around 5.5x higher resolution screen
It has a live view which Preview your photos on the camera's screen before taking them
Capture around 2.5x more detail in your photos with 24.0 MP resolution
It has 51 focus and 15 cross-type focus points.
It has a weather seal which is designed to shoot in the rain
D7100 has in camera HDR which Combines multiple exposures to capture high dynamic range
It also has a built in auto focus motor which Automatically focuses shooting video

There's a list of features which are upgraded more.