Woah! Loads of responses on this one!

The most ive had from any posts ive put up.
AFAIK, everyone is saying not to go for the extra kit lense, and buy a separate one? I am only starting off, and have used the standard lens that comes with it, that does not have that much zoom

And i am not sure about spending £200+ on a lense!

COuld someone please explain the advantages of the above sigma lenses mentioned?
If i do end up going for a kit lense, they also had a tamron lense. Is this one any good? They have the tamon one priced at £100 and the nikon at £200. But i would end up getting the extra nikon lens for £100, which i thought wasnt bad.
If i get the 55-200 nikin kit lense, will i be able to do macro, and i am assuming it will have a good zoom on it?
As alot of you will probably gather, i do know the basics of taking pictures, and can take a good one, although am VERY new to all these flter sizes and all these numbers are very daunting