I just picked up this thing from Harbor Freight:
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http://www.harborfreight.com/cpi/cta...emnumber=36871
and it works pretty slick as a chip case. It fits 4 stacks of 6 chip racks with room for at least 4 decks of cards on top of the chips. There is enough room on the sides of the racks that they are easy to get out, but not so much that you have to worry about the racks falling over. You can get all the chip racks out with only one of the lids open. I've got about 1800 chips in it now, and the top of the case does bend out some when you pick it up. No catastrophic failures yet, though I'm not sure it could handle a full 2400 chips. I'm going to fit a board to the inside floor of it to help ensure the bottom doesn't bust out. Probably overkill, I think the case will hold up fine to 2000 chips as long as I don't throw it around too much.
The case was $30, but all of HFs stuff goes on sale eventually, and it will probably be $15-20 sooneror later.