Nikon d90 which lens to buy for portraits?

I heard a lot about the 50mm f1.8d and 1.8g which are awesome for portraits but can someone explain to me what are the differences between those two and the 50mm f1.8 one (which i heard is half-price but a lot worse)?
what i'm looking for is a camera for portraits with a good focus sharp quality and especially for low light photos

Any recommendations on settings when filming with Nikon D3100?

Have a Nikon D3100 that i'm using for film. Still getting used to it. I have the video quality on 1080p but it doesn't seem to be up to par when i film things with it. Any other setting adjustments that may help?

First time digital slr buyer.need advice?

So I'm 16 and I'm looking to buy my first d slr camera. I have looked into the Canon rebel t2i and the Nikon d3100. If anyone has either or prefers one or the other let's me know. Any advice for a beginner/amateur photographer would be great! I'd love any other camera recommendations as well.

First time digital slr buyer.need advice? - 1

So I'm 16 and I'm looking to buy my first d slr camera. I have looked into the Canon rebel t2i and the Nikon d3100. If anyone owns either or prefers one or the other let's me know. Any advice for a beginner/amateur photographer would be great! I'd love any other camera recommendations as well.

Who has a Nikon D3100?

I've been saving up now and I really am interested in photography but there's more to it.

I want to know from people's experience with this camera. I personally love it, a friend of mine has it and said its way much better than D3000.

Is this nikon d5100 problem?

I have just purchased Nikon D5100 from BestBuy. When i look the objects from eye piece the info appear inside be blure or not clear. When i see in LCD its ok. Is this the defect in camera?

18-105mm or 55-200mm vr lens on Nikon d7000?

Ok so basically bestbuy has this bundle that offers the nikon d7000 kit (18-105mm) with a extra 55-200mm vr lens. Is the bundel worth buying or should I just buy the nikon d7000 body and get the 55-200mm vr lens? By the way I'm a amateur photographer that does street photography. I tend to shoot bboys (breakdancers) and graffiti.

Which Nikon DSLR to go with?

So i currently have a nikon d50 and i would like to upgrade to a little better dslr. I'm not a total beginner anymore but def. Not at a professional level yet.
which camera would you recommend me to go with?
oh and i do have to watch my wallet little.

Separate mic for Nikon D3100?

I have a Nikon D3100 and want to record decent audio along with video, but the camera doesn't have a jack for a mic, any separate (good quality) recording devices anyone could recommed?

Sell my D90 for a D7000?

I own a Nikon d90 and i love it but i'm thinking of upgrading to a nikon d7000
So is it worth it?
P.S. I know everything about photography already so that nobody tells that if i'm a beginner don't get it