Get the Nikon 70-300mm VR, its a better lens
No need to push any lens. He's just starting out and has the kit zoom lens - let him figure out what he needs!
OP, I'm glad to hear that you've worked it out.
That being said, please do click the link in my post. (Not sure if you've noticed it's a link. The writing in all-caps is a link.) It has a list of countries that use the PAL standard and those that use the NTSC standard. I suggest sticking to the one that's right for your country, as it will ensure 100% compatibility with all media devices sold there. It's not really a big deal, as pretty much everything can be displayed on anything, but it's still best practice to use the standard that's accepted in your area.
50p is still great. You can slow it down by 2x and get 25p footage, which is the PAL standard, correspondent to NTSC's 30p.