My Magic Collection only consists of the Pigskin Mini's set, and it's stored in a 400 count box, but I believe the 8-card pages that Ultra Pro makes should work for storing minis.
View my Matt Ware collection: www.freewebs.com/jrlebert (3,500+ cards and counting!)
Current Projects:
2012 Panini Golden Age Mini Master Set (all 5 backs) - PM me!
2013 Panini Golden Age Mini Master Set (all 5 backs)