It's easy to overlook the background, but just as essential as the lighting for producing a professional look. One of the best backgrounds for product photography is the seamless background, where the horizon seems to appear as either a color gradation or a single color with no corners or seams.
You can achieve it easily with a piece of butcher's paper or something slightly heavier but still wider than your camera's field of view. Place a table slightly away from a wall (if the table isn't very deep, further away and vice versa). Tape the front of the paper to the front of the table and bring the back halfway (adjusting for field of view again) up the wall and tape it there.
It should end up looking from the side like a skateboarding ramp. This will give you an even surface to light however you want. High key (background fully illuminated) for that all white background look or lit with colored gels over the light source for a gradation of color. You can get a convincing look of the sky at dusk this way.
You may also want to elevate the object by putting a box under it (hidden from camera's view, of course) to make it appear to be "floating".
Don't ignore the focal length of your lens. Many photos I see posted are shot with a wide angle lens - probably because this setting allows you to fill the frame with the image in relatively good focus on most inexpensive cameras. But you may find you prefer the look of a longer lens (closer to the telephoto side of a zoom) with the camera placed further away from the object. A wide angle lens will create more distortion to the object you're shooting, creating a "fish eye" effect to a greater or lesser degree depending on the actual focal length of the lens.
A telephoto setting will allow you to selectively focus, say, the front panel or a feature you want to emphasize while throwing the background out of focus - perfect if you have something you want to draw attention to. If your camera has a manual iris you can adjust that to change the depth of focus (called depth of field) to draw thing into focus or out in a particular range.
I'm sure there are better written and more complete tutorials on the 'net if you want to explore these concepts.
I'm surprised no one has mentioned a soft box. It's basically a large surface that is lit from behind. They look like tents attached to lights with a white surface as the bottom facing the subject. Do a search. Soft boxes are a good way to eliminate any blemishes from showing up on your finished shot. But the various mention of diffusion (wax paper, foamcore) will give a similar effect, if harder to control. Softboxes direct all the light to the diffusing surface, eliminating any hard light from spilling onto the subject.