I think the Clayden book is great, as well as March's and Smith's. Other books that I have used or currently use that I think are great are:Klein: Organic Chemistry II as a Second Language
-- I used this in Intro Organic. I thought my textbook, as informative as it is, was too verbose. This helps you understand the "organic chemistry mindset" and is compact and easy to read.Wyatt and Warren: Organic Synthesis - Strategy and Control
-- I use this as a reference for modern reactions, new twists on old reactions, asymmetric stuff, etc.Wyatt and Warren: Organic Synthesis - The Disconnection Approach
-- Great for learning the art/science of retrosynthesis, making strategic disconnects, etc.Kurti: Strategic Applications of Named Reactions
-- A must have, goes through many named reactions, what they are, and where they've been used. Chicks also dig guys who can rattle off a bunch of named reactions
.Kocienski: Protecting Groups
-- Handy to know how to protect and deprotect what, in what conditions, reactivity, and examples of use. Protection is serious stuff y'know!Nicolau: Molecules that Changed the World
-- A good bedtime story detailing a bunch of natural products, their discovery, total synthesis, etc.