Best book collections? We're building a library and are looking forward to furnishing it with the classics and other great works. While doing garage sales and estate sales and visiting some large used bookstores is kinda neat, I'm wondering if anybody sells a good book collection? I know of the Penguin Classics Collection which is just over 1000 books, but I'm wondering if there are others that are similar to buy in bulk? Or perhaps a used bookstore online with a mega inventory and database where you can select each individually?

Many thanks if anybody has been down this road before.