Re: my collection that got about 75% bigger in the past week...
the traincase is the large midnight one from Sephora. it's $90.00. There is a smaller one with more trays but I decided this one would be better for me. also, I noticed that my brush roll was starting to frey, and a day later the threads were coming out! I returned it and got the Sephora one instead. the slots are much bigger for brushes and it has 2 zipper pockets instead of one. the MAC one is MUCH prettier though, but hopefully the Sephora one won't fall apart too :-(
also, the 182 will not fit into the slot, you have to put it into the little pocket on the side.