Its kind of trial and error with paper for me too hun, i really have no idea about art papers
But i get some photo paper from home bargains, the cheap shop its £1 for 10 sheets of A4 size. Its the good paper too for only a quid.
I send for my magnet paper and my canvas look paper, i just use the canvas paper to make bookmarks, (I sent Danny a bookmark he can tell you what that is like) I think its very good canvas look paper, its thicker, more pliable to work with.
I get mine from leylines if you want to email the guy i have his email address...
ibingle@aol.com
Email him and ask about papers etc for printers, he is excellent on this stuff, he can send you a little brochure etc.
His name is Ian, tell him i recommended him, he knows Elle.
Hope this helps alittle.