I'm looking to start smoothing some of my nibs. I got a nib from Richard Binder that was incredibly smooth and made mine seem scratchy. What materials do I need and what would the process be?

Richard sells a "Nib Smoothing" kit on his site, which comes with everything you need plus a couple of "practice" pens. Look under accessories and tools.

There is also a great deal of information in the sticky-posts in this forum. There are several threads linked in the "Repair Reference Information" thread that is pinned here.

Personally, I prefer the 8000/12000 micromesh pads for nib smoothing.

Don't be afraid to try it, but go slow and test-write often. Smoothing papers and micromesh pads can be aggressive, and if you're not careful, overuse can strip the iridium right off the nib, especially if you're working with F and XF nibs.

This link is about grinding nibs but gives you a good idea:
http://www.marcuslink.com/pens/nibs.html
There's another good smoothening story I read last week but can't find the link, if I get it back I'll provide it.

The Binder smoothing kit looks awesome. I can't seem to get the page to work on his site.

I smooth almost every nib that comes into my house. Just seconds of effort pays off such great dividends!! #1 rule however is get a 10 power loupe and ensure that the tines are even before you ever think of smoothing one! Half the time adjusting the tines is what the pen really needs and if you go to smoothing one with mis-adjusted tines you will just make a mess!