Suggestion... rent one before you purchase one.
300mm might not be enough for soccer field shooting. Make sure whatever you buy you can use Nikon Brand 1.4 or 1.7 tele-converters with it...btw, you can not with the 70-300
I have the 70-300 VR which I used all this past summer on both a D200 and D300 body...its a great lens but it always seems to work out that it won't quite reach out far enough and the VR is not lighting quick which you need with sport shooting....
I rented the 80-400 VR, which is compatible with the converters but ended up buying the 200-400 VR...its a lotta fun, especially with either the 1.4 or 1.7....and you can actually get off a few shots hand-held before it breaks your arm...a Manfrotto 685B monopod corrected that...the VR or both these 2 lens is very very fast..
Another thought...Nikon's 80-200 AFS II (2-ring, not the slider) is a very neat lens and its fast and 2.8...and, its compatible with both those converters
Its my favorite go-to combo and now resides pretty much full-time on the D200...
http://alaskandave.smugmug.com/