Homebrew PCBs

Well, having first used an HP 7445A Plotter and then switching to the 
TT method, I noticed the ease in making a pcb with the TT method 
especially with double sided boards. So I purchased a broken GBC 95P 
laminator off of EBay for $20 dollars. I casted new gears and 
installed a new thermal cut-off device and I had a functioning 
laminator. 

From my previous use of a clothing iron, i was using JetPrint Graphic 
paper that was great because 98% of the traces were intact. However, 
using this paper in my laminator was a bad idea because the heat from 
the laminator was not enough to penetrate the paper. So in desperation
(and a stroke of ingenuity), I used a regular ol' sheet of paper and 
the image was perfectly transfered. I think the reason why magazine 
paper like "Time" gives good results is that it is glossy yet thin. 

On a side note, I wonder what the fesiabilty is in constructing a 
roll tinning machine similar to what Dave Hopkins described in a 
previous post. Specifically, would it be worth it compared to 
purchasing tinnit?