Brian,
I've been refilling for years and the cost savings are tremendous. But
there is a right way and a wrong way to do it. First the type of printer
is important. Canon printers, which I use, are by far the easiest and most
successful to refill since the ink cartridges are nothing more than a
clear plastic container to hold ink. Get a decent bulk ink from a supplier
such as
www.hobbicolors.com - very low cost and they also supply virgin
refillable cartridges with their kits. Either email them directly or go to
eBay and search on hobbicolors. It's one of the two inks I use and it is
excellent. The only down side is that Canon printers is the only brand
they support.
www.alotofthings.com sells Sensient-Formulabs ink (
www.formulabs.com ) and has ink specifically formulated for all makes.
Done properly refilling isn't messy and is highly cost effective. A better
venue for this type of discussion is
www.nifty-stuff.com which has more
good refilling info than any other source I've found and also the
newsgroup comp.periphs.printers. Unfortunately that site has been infected
by one of the worst trolls I've ever seen online.