high tech pens

I was looking around for some new ink pens today and ran across some that would make the NASA $12 Billion Zero-Gravity Ink Pen look like a crayon. Of course the 12 Billion -dollar ink pen story is an urban legend, these are real. I saw one pen that has 1 GB storage built in and other pens with calculators built in - that would come in handy when you're balancing your checkbook. I usually use just your regular, run of the mill, ball point or roller ball pen, but these high tech pens have this pen freak drooling just a bit...