To add to my lust for the Epson R1800, I found the InkRepublic. These guys sell bulk and continuous ink systems for your printer. What does this mean? Well, it's quite simple actually. You use a "permenant ink cartridge" that is attached to an exterior ink tank. It's like having a Super Big Gulp of ink for your printer.

The initial cost is quite steep, but it saves you from ink clogs, having to run out and buy ink cartridges, and the guilt of throwing away cartridges to feed your photo fetish. Link.