Circulation Coinage And Folders In Mexico

I am arelatively new collector and will be going to Mexico in 2 weeks. Are there any coins to be on the look out for that are still in circulation. I know the 10 and 20 peso coins from 1993 to 95 have silver centers, but know of nothing else that is worth searching for. Any pointers would be appreciated. Unfortunately the devaluation of 1992 changed the coinage to a rather dull format. Also what coin folders and albums are availabe for Mexico. I have found 20th century type folders from Dansco, 1 and 5 centavo folders from Whitman, Libertad bullion folders and liberty cap peso folders but nothing elso. There is so much more out there but I am not sure of what folders exist.