Empire Gaming RPG: A Pictures Worth A Thousand Words

I was reading a post over at Tenkar's Tavern about PDF's and artwork and it got me thinking...which may be a first for me.

I've been writing a game system for quite a few years now and I'm getting close to completion on it. Which in turn is causing me to think of a lot more things I need to do if I ever want to try and publish it. And Tenkar brought up a good point which may be a problem for me. What do I do for artwork? Since stick figures are difficult for me to draw, and I know that art can make or break a publication based on first impressions, what should I do?

I don't know any artists. I don't know where to find artists or how much they cost if I do find one. I can buy clip art, but as I've never publish anything in my life or even attempted it, I'm not sure what I have to do to use them legally. I would hate to finalize this thing and then get sued because I forgot to get permission for a picture.

Anyone out there that has ever published something have an opinion or advice?