Need some help comparing Nikon wide angle lenses for a DX shooter?

So I'm a bit of a photography newbie, but I'd love some help in understanding the differences in these 2 Lenses.

The Camera I'm using is Nikon D5000 and my favorite thing to shoot by far is landscapes.

AF-S DX Zoom-Nikkor
12-24mm f/4G IF-ED

I've heard some pretty great things about this lens, but I'm not exactly wanting to spend tons of money on a lens.

AF-S DX NIKKOR
10-24mm f/3.5-4.5G ED

This is the other lens I've considered because of the lower price and fairly comparable specs, But I'd love some input on how different they actually are.

Thanks all.
Added (1). Also, I'm wondering how safe it is to buy used lenses from the Nikon website.
Added (2). Also, I'm wondering how safe it is to buy used lenses from the Nikon website.

Read more: Need some help comparing Nikon wide angle lenses for a DX shooter?

Looking for input on which Nikon camera I should get- D3300, D5300, or D5500?

This is my first camera purchase so I'm looking for some help on what to buy. I know that I want a Nikon but I'm not sure which model to buy. I know that the D5500 is going to be the best among the three but is it worth spending more money? I would also like to know what lens I should get. Any feedback appreciated- thanks!

Read more: Looking for input on which Nikon camera I should get- D3300, D5300, or D5500?