Ah, don'tworry about it Carnix; I was just wondering how you do it. Thanks.
I convert to greyscale using the archaic method of copying and pasting the picture into Microsoft Powerpoint, going to print preview and setting it to greyscale. Then I screenshot the result, which gives me either the whole picture or at the very least the shades of grey i need, depending on how large it is. Yarr.

(alright, i just wanted an excuse to use that emote).
Dripik, do you have a picture of MicroD in uniform with legs? I need one for my almost-finished comic and I fear doing one myself and not doing it justice.
"How very dare you!" Love it.