Buying books...

Seems like Proxis is offering a 10% discount when you order 2 computer books before the end of september! And I saw 2 nice PHP books… “Php5 Objects, Patterns, Practice” and “Php 5 Power Programming”. Anyone knows if I should give them a try? If you have other great titles on topics like PHP, C# and ASP.NET, please comment this post with title and ISBN number