Does anyone have proffesional photos taken of their art or themselves?

I would like professional photographs of my art I've got a professional Nikon digital camera and a tripod but somehow they never come out looking as they are in real life. I spend so much time on small bits of detail in a painting and I want it all visible but it always comes out blurry and the lighting is wrong in all the rooms of my house. Does any of you artists out there get that done? You can still answer if no and give me tips if you have any. If you do, where do you go and how much do they charge?

You don't have a professional camera. Your camera does not have a job, and if it really were a professional, it would take better photos.

You need more light. A lot more light. Ambient room light is not enough to take detailed photos. You probably also do not have very good lenses.

You can hire someone to take photos for you, you can try to find someone off Craigslist or the local newspaper who will do product shoots. Unless you are producing huge pieces, a simple table-top light set up should be enough.

If you want to do it yourself, do it during daytime by a large window so you get lots of light. Use a large white sheet of cardboard on the other side of the piece to reflect light back on so one side is not in shadow. Black works great as a background.

Put the camera on the tripod and shoot in aperture priority at the highest f/stop (or one setting below that) to get the most of your object in focus. Use a 2 second self timer so that your pushing the button will not cause camera shake.

Matt is correct. A digital camera is not a "professional" camera. But that shouldn't matter too much. It's really about composition.
Try taking the photograph outdoors in bright, natural light. Avoid shadowy places like under trees. If you can get to a field that's great. Also, use a tripod to avoid blur.

You can also try getting some light reflectors that professional photographers use if you don't want to go outside.
Here is an example of a reflector umbrella: http://www.meritline.com/33inch-studio-flash-light-reflector-umbrella-black-silver---p-86847.aspx?source=fghdac&TC=CAD

You could use one of these paired with a bright lamp. I'm not too sure about how to use this equipment but I know it's helpful.

It's not about how professional
Light properly your painting, avoid reflections and strong ditect light
Frame frontally
Select the proper white balance, manually if necessary with the aid of a white card
Exposure properly

It's really not that hard, I always do it myself.

Place your artwork on a wall, NOT a table or floor, a wall. Make sure the wall is either black or white, or covered with black or white paper. Make sure the room is well lit. I personally take photos of my art during the day with natural sunlight. Obviously make sure that there's no shadows or anything, so consider where to shoot your photos in the room. If you are doing it at night you need a lot of lighting so it doesn't have that yellowish look. My mom had lights for her plants that I would borrow to take them at night.
I have a canon rebel camera. It's not a professional camera I wouldn't say, just a high quality camera for recreational use.

Once you take your photo and upload them to the computer, if the background is uneven or if you don't want background and just the artwork (which what I usually do) just take it into photoshop or I think even paint will crop out those areas you don't want, so it's just a full picture of your art.

By the way, I'm not even a photographer. I've never taken a photography class. Maybe you should look into getting a different camera. Canon has never met me down. If not just keep trying, it's probably the lighting, if you're in a well lit room it's almost impossible for it to be blurry.