A good fast glass lens is expensive. Constant aperture-f 2.8- for low lighting such as a gym will have to be combined with a faster film speed that may result in noise issues. White balance is a must. Mercury vapor or sodium lights are heck to adjust when you do not know the Kelvin temp and try to make adjustments to the white balance on the D60. Back to the lens. I would look for a lens such as a 105 or 120 constant aperture lens that could also be used for portraits as well.

A good mono pod is required to stabilize. Tamaron has a good range of lens that are less expensive than the Nikkor's. I got my Tamaron 70-200 f 2.8 for 900.00 versus 2400.00. Please go to a camera store (not Best Buy) to see what a big difference a good lens will let you achieve. Pick a target and take shots at the widest aperture with an ISO of 200 to 400 to 600.

See what works for you..

What camera are you using? From what position will you be shooting? What lenses do you already have? If you're using a crop sensor camera, you'll probably want to shoot at f/2, maybe f/1.7. Any smaller, and you won't be able to keep your shutter speed at or above 1/500. In a high school gym with older and dimmer lighting, you might be able to shoot 1/500 second, f/2, 3200 ISO. Add maybe a stop of light for a high school gym with more modern lighting. You could use a 50mm and let the action come to you. E.g., you could sit by the end of the court with a 50 and get action nearby or at the basket.

Again, it would help knowing what equipment you already have. A 70-200 2.8 on a crop sensor will get you better reach, but you'll have trouble keeping your shutter speed at or above 1/500 with a 2.8 lens..