I have Nikon F-301 camera and its spare lenses and now I want to go for Digital SLR with Nikon by using the sa

If the question is the same lenses,, the answer is yes, your lenses will work on every Nikon dSLR except the D40. The D40 won't focus with some lenses and won't meter with a few. The D40 is compatible with Nikon F mount with AF coupling and AF contacts, type G or D AF. AF-S, AF-I, all functions supported. But step up to the D50, D80, D200 etc, your lenses will be fine, except for a very few older lenses.

Your lenses will be "longer" on a Nikon dSLR, by a factor of 1.5. Your 50mm lens will have the same field of view as a 75mm.

I just got the D80 yesterday, and wouldn't you know, it's raining cats and dogs here today. :-(

Good luck with your new Nikon!