Homebrew PCBs

In the freebie Eagle, is there a way to print, for toner transfer, more than 
one image per page? I'm trying to maximize use of each toner transfer sheet 
while keeping the passes through the printer to a minimum. Exporting a 
monochrome TIF for top/bottom/screen and then panelizing in Photoshop, I can 
already see, will get very tiresome (not to mention error prone).

Exporting monochrome images to the clipboard is a flabbergasting exercise. 
It puts a gray half-tone screen on the image.

So far, I have a PS script to invert, mirror, and extend the canvas for 3 
side by side copies. The script to panelize vertically will be just as easy. 
But isn't there a better way?

Likewise, I imagine I should be able to script Eagle to export 
<filename>TOP.tif, etc., with the appropriate layers, but I'm not that 
sophisticated yet. Any tips on how to do this? Do you fancy sharing your 
favorite scripts?

Unless, of course, there's a more direct way. Like, File|Print would be 
nice...

Last, is there a reason to export with finer resolution than the printer 
dpi? I've been exporting 2400 dpi for the LaserJet4, but not sure that