I bought a 299 piece socket set from sears about 2 months ago now and was having trouble finding a good socket organizer to hold them. I stumbled across foam fit tools who makes custom layouts and designs that are cnc cut from high density foam. Since I had a custom design done, it was a bit more then anticipated, but to buy organizers elsewhere to hold 299 sockets was not cheap either. I ended up with three pieces of foam shipped to me for 3 drawers in my toolbox, 2 for the sockets, and one for a 21 piece extension set and a 10 piece wobbler extension set. They look amazing!! I havn't taken pictures of them inside the toolbox yet but here are some preliminary layouts done on paper that were e-mailed to me while a layout was being created.
By the way, I was charged nothing for the designs being done, and shipping was included in the price. Take a look at their site, they have pictures and lots of layouts already on there to check out
Their site is www.foamfittools.com