Well your question wasn't specific so I'll tell you how to set it up along with using it.
To set it up, press the menu button on the left hand side of the camera. Go down to the wrench button and scroll down a ways until you see "Self-timer delay." Go to that and select however many seconds you want.
To use it, press the Fn button underneath the D3000 sign. Then, click the button you would press to normally take a picture and it should work.
and nikon camera can use a nikon lens, try a D3000, a D50, or a D9
Use the "sports" setting
Sure! You also should consider the Canon 50D.
One tends to use a Nikon remote to control a Nikon camera. This can be used when one is attempting to take a self portrait, or in conjunction with a tripod.
The K1000 is a fully manual camera, only. It will be necessary for you to buy a self timer winder. This attaches to the shutter release and is extremely easy to use. Hunt for the wind down self timer on ebay. Costs $ 5 to 8.
Yes
"Using software such as Nikon recovery software will allow you to recover all the data on a memory card. Very easy to use and self explanatory, go buy the Nikon software and the directions will be included."
Yes, you can. Nikon uses Nikon F-mount to connect the lens to the camera. Sometimes other manufacturers change their mount, but Nikon never did, so you can still even use analog lenses.
The Nikon D90 is one of the newer Nikon cameras. It comes with a detachable lens that is compatible with other Nikon lenses.
You can buy a remote for the Nikon D60 but not the Nikon D40
time interval most use the timer
nikon