Allied is another good one.
Thing i like about mouser and allied is they still have a physical catalog. Too me its allot easier to thumb threw the catalog then order online.
This place has been recommended in other threads as a good source for bulk parts.
http://www.goldmine-elec.com/
I've been considering rolling the dice on one of there surprise boxes and see what i get.
http://www.goldmine-elec-products.com/prodinfo.asp?number=G9321