http://www.amazon.com/Rapidograph-7.....ds=rapidograph

these are by fat the best pens you refil the ink yourself and clean the pens after eah use but they are easy to use and extrememly beautiful when you put it down ^^ i used them in high shool and i SOOOO want some again!

I don't know what pens you currently use but my inking pens of choice are Copic Multiliners.

I use micron pens for inking. They're pretty good quality and show well through the colors.

I use a brand of pens called "Micron" and have been using them for years, I won't use anything else really nothing else has worked as well for me. I buy mine individually at a local "Michaels" store, but here is an amazon link to a set of different sizes: http://www.amazon.com/Sakura-30062-...../dp/B0008G8G8Y

Rapidograph
And
Rapidoliner

The BEST

Graphs can be a bit pricey but the ink quality is SUPERB. Rapidoliners are significantly cheaper and produce the same results.

Microns...eh, they're good for quick sketches, but if you erase your pencil lines afterwards, it tends to diminish the ink.

Or brush pen. (ink well style)

Micron or Dip pen. I have never had luck with rapidiographs. Every single one of them has exploded within a few days/weeks of getting them.