i'm glad to see this thread is off to a start. I've used an artist’s guild book for contracts and it also really helped me understand my rights. Even so, it's hard to then apply them with each situation being different. I understand that the law is basically on our side as the artist nearly 100%. Our work is copy written automatically and the copy right symbol can be used without any special permission ... however, I guess to get better results from a court if that should ever happen, registering our work is a good idea. It doesn't sound like it costs much either. This could be different now but I think they even have a way that allows you to video tape your work for X seconds, fit a lot of images on one tape and group register them for very little. None of the numbers are coming to me and I can't find the effin book now.
I've been getting prints from Staples on foam core and laminated ... it isn't cheap but I was really surprised by the results. It's really durable with the foam core, and the lamination won't quite stop bullets but it's good for everything else.

I have a cannon home printer that'll only do 8.5X11 and it does a great job but its not professional quality or anything. So, I've got kinda expensive and kinda cheap ... i guess i'm interested in what others are doing in case there is some middle ground in there i'm missing or i might really like the sound of.
I remember a thing in PHR i think covering artists ... some of which i believe can be found around here and the prices seemed to be in the $200 - $300 range for something like a single rendering of the car. I wouldn't guess that convers anything special ... a drawing of a givin car with desired mods, in given artist's style ... the end. it's just alllll so much more complicated. it'd be real cool if it wasn't though.