If you're looking for suggestions on other publishers to solicit (not 
that you asked : ) ),

Manning, publisher of Erik Hatcher's Lucene in Action among other useful 
titles.

Pragmatic Bookshelf, publisher of the canonical Rails books, among other 
useful titles.



[ But I don't mean to add work for you, a buncha cool titles from 
O'Reilly is probably sufficient loot, it's just that when I tried 
thinking of O'Reilly titles to suggest, I realized all the recent 
technical books I've purchased have been Manning or Pragmatic instead].