If you just want to show the artists the artwork, so that they have a base to work with, then why not just stick WinUAE on a CD-ROM with the game in question and let them run it. This way they'll get the full authentic experience. And if you're opposed to distributing the game/Amiga-rom on a CD, you can also play the game on WinUAE on your own machine, and use WinUAE's AVI output feature to record the full frame and then distribute that to your artists.
- Mike