Digital BW, The Print

HI!

What's the best way to brighten up a print with the MIS VM-inks and 
the roark-curves? I've scanned loads of pictures without having 
properly calibrated my monitor and they all print out a bit too 
dark. So I want to brighten them up without changing the file. The 
two possible ways I can think of are 1) raising the curve in PS 
after applying the roark-curves, 2) changing something in the 
printer settings, so that only the final print is affected, not the 
file itself. So, what do you think? Which method is best? Are there 
any others (perhaps with Qimage, which I also use)?
Thanks,

Peter