A designer in my local gaming group showed up with a new prototype of his Godzilla game (http://www.boardgamegeek.com/boardgame/39289) and the cards he had looked almost professional -- glossy, durable, etc. He said he used plaincards.com.
They send you sheets of micro-perforated cards, some kind of glossy spray, and special software for the printing. End result looks really tight. But I went out to their site and they mention in their FAQ that they've had some complaints with people using HP All-in-one printers, and printers that put the paper through a sharp U-turn in their printing chamber. This is because the micro-perforated card sheets can separate inside the printer and get jammed. And as luck would have it, my printer is an HP All-in-one with a pretty sharp u-turn in the printing chamber.
Anyone else have any experience with plaincards? Specifically, which models of printers work, which don't?
What kind of printer have you used?