The problem I find with tutorials on the web is they're all over the place in terms of structure and style; plus I find it easier to use a hardcopy reference than staring at the screen.
Getting a book depends on which version of Delphi you are going to work with and your level of comfort with the language itself. My favorite book would be Mastering Borland Delphi 2005 by Cantu' ISBN 07-8214-342-3 (updated to 2006 at http://www.marcocantu.com/md2005/Upd...phi2006.html);
if you also need to learn .NET, .NET 2.0 for Delphi Programmers by Shemitz ISBN 15-9059-386-3 is serviceable.
Inside Delphi 2006 by Hladni seems to be the only Delphi 2006 book of note, but I never got into the language to enjoy reading another Delphi book. (Turbo Delphi is based on Delphi in BDS 2006).