Hi Kat, welcome to the Cameralabs forums!
I'm not sure if you've seen our Nikkor kit lens group test article, but it'll answer most of your questions concerning differences between the lenses you're discussing. The article is here and there's prices at the bottom of each page:
http://www.cameralabs.com/reviews/Nikko ... roup_test/
Basically, the Nikkor 18-55 and 18-135mm are both budget lenses. They're good for the money, but they are budget models and you've gone for a high-end body, so you should really couple it with something decent.
The Nikkor 18-70mm is a great choice to go with a 70-300 and the one I'd recommend for your 'standard' general purpose lens. I did however notice your comment on the skateboarding photos in our Action section - if this is something you're into, then you might want to consider a lens which is faster both in terms of brightness and focusing speed, especially under low light - it's pricey, but the Nikkor 17-55mm f2.8 would be great for this kind of photography, especially when coupled with a decent flash gun! But I digress!
Back to the 70-300mm... The VR feature is well worth having on the 70-300mm, so if you have a chance to reconsider or change the one you've ordered, I'd strongly advise upgrading to the Nikkor 70-300mm VR version.
Just to confuse matters, there are currently three different 70-300mm lenses in Nikon's range!
Nikkor 70-300mm f/4-5.6G AF
Nikkor 70-300mm f/4-5.6D ED AF
Nikkor 70-300mm f/4.5-5.6G ED AF-S VR
The last one is the only one with VR and I'd strongly recommend it unless you have a very steady hand of course!
Or as Thomas suggests, perhaps go for the 18-200mm VR instead of the 18-70 and 70-300mm.