Etching PCB's and Boxes

[rmgFX]

Hello,
Currently I have one laser printer and I would like to do my etching work!

I have two questions:

1º which type of acetate paper should I use to do my boards and boxes?

2º will a 200gsm photo paper work for etch? I was told that 150gsm was good but can find it!

Regards

[gtr2]

If you have any magazines laying around, they are a cheap and easy paper to use.