This time Alister Christie talks about the introduction in XE3 of record helpers for primitives - which allow you to do things like ShowMessage(123456.ToString). The video is 9 minutes long and you can watch it on YouTube. Also see the blog posts by Marco Cantu and Rodrigo Ruz.
This book will make you a faster Delphi developer, it doesn't matter if you are just starting out, or have been using Delphi since version 1, you will find all sorts of tips, tricks and hacks to boost your productivity.