Sounds good - sadly I can't affect the way they're printed. I just have to try stuff and then see how it comes out when Gamecrafter prints them. I'll obviously be doing a bunch of test-prints with cards when I get the layout down.
And yes, for those wondering, I may work on your image a bit (contrast, colour levels, etc.) if it is required to get the right presentation on the card. In a perfect world everyone would have Dwartist-style pictures of beautiful minis!
I've gathered some images and will begin fiddling when possible. Also looking at how to re-design the cards to accommodate the character images.