If you don't want to pay too much money for a pen, then I would recommend the Zig Millenium pens. They're pretty good, and can usually be found at Wal-Mart in 2-packs which have one pen that is like .5 and another that's something like .2 or .25. Where I live it costs around 2 dollars for a 2-pack, which is a lot better than paying $2.99 for a single micron pen. They look something like this(except Wal-Mart sells black, not purple.):

If you want an even better pen, then of course I'd recommend Sakura Microns. The only problem I have with these is that I tend to get the smallest size and even though I am extremely light-handed the tip always ends up getting squished in before I finish the pen's ink due to its flexible nature. These pens really are quite good, but can hurt your wallet a bit since they are, as I said before $2.99 a piece.

Another VERY comparable pen to the Sakura Micron that is a bit less expensive ($2.30 a piece I believe) are the NeoPiko Drawing pens. These are also very good but can only be ordered online.

I usually buy those from this site:
http://www.akadotretail.com/categories.php?cPath=31_14_69&page=3You might also want to check out the above site for pen nibs, nib holders and bottles of ink. These are the dip type pens. I wouldn't recommend them if you're not used to inking by hand because they are a bit hard to get used to but if ya really want it then it will probably be worth checking out.
Hope that helps you with choosing the right type of inking pen next time. ^_^