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Books for (mostly Bayesian) Statisticians
By an Amazon.com customer
Bayesian Data Analysis, Second Edition (Texts in Statistical Science)Bayesian Data Analysis, Second Edition (Texts in Statistical Science) by Andrew Gelman
Buy new: $57.67 / Used from: $47.00
This book is well-written and has really good examples.  If you are interested in Bayesian statistics, this should definitely be in your library.
Modern Applied Statistics With S-PLUSModern Applied Statistics With S-PLUS by William N. Venables
Buy used from: $31.01
This is a really good reference for using S-Plus, even S-Plus Help is always citing it.  It's always on my desk.
Markov Chain Monte Carlo in Practice: Interdisciplinary Statistics (Chapman & Hall/CRC Interdisciplinary Statistics Series)Markov Chain Monte Carlo in Practice: Interdisciplinary Statistics (Chapman & Hall/CRC Interdisciplinary Statistics Series)
Buy new: $66.58 / Used from: $64.00
Good book full of practical examples of MCMC in use.
A Book on C: Programming in C (4th Edition)A Book on C: Programming in C (4th Edition) by Al Kelley
Buy new: $39.78 / Used from: $17.38
After searching far and wide, I found the holy grail of books on C programming.  I highly recommend this book.
Unix in a Nutshell: A Desktop Quick Reference for SVR4 and Solaris 7 (3rd Edition)Unix in a Nutshell: A Desktop Quick Reference for SVR4 and Solaris 7 (3rd Edition) by Arnold Robbins
Buy new: $19.77 / Used from: $0.01
Not for beginners, but if you have some knowledge of Unix, this is a great reference.
The LaTeX Companion (Tools and Techniques for Computer Typesetting)The LaTeX Companion (Tools and Techniques for Computer Typesetting) by Frank Mittelbach
Buy new: $54.59 / Used from: $24.49
An indespensible reference on LaTex.  Not perfect, but best out there.
Statistical Decision Theory and Bayesian Analysis (Springer Series in Statistics)Statistical Decision Theory and Bayesian Analysis (Springer Series in Statistics) by James O. Berger
Buy new: $81.75 / Used from: $39.18
This book is good for learning decision theory from a Bayesian point of view.
Monte Carlo Statistical MethodsMonte Carlo Statistical Methods by Christian P. Robert
Buy used from: $39.99
This is a good book for learning MC.  It was our Statistical Computing textbook at Duke.
Introduction to the Theory of Statistics (McGraw-Hill Series in Probability and Statistics)Introduction to the Theory of Statistics (McGraw-Hill Series in Probability and Statistics) by Alexander McFarlane Mood
Buy used from: $50.00
This is the textbook I learned mathematical statistics from.  I might need to buy a new copy, as my current one got so much use during my studies.
Principles of Multivariate Analysis: A User's Perspective (Oxford Statistical Science Series)Principles of Multivariate Analysis: A User's Perspective (Oxford Statistical Science Series) by W. J. Krzanowski
Buy new: $150.00 / Used from: $107.99
Well-written, easy to understand, and more information than most other multivariate texts.  A good balance of application and theory.
Nonparametric Statistical Methods, 2nd EditionNonparametric Statistical Methods, 2nd Edition by Myles Hollander
Buy new: $93.24 / Used from: $68.95
Very good reference for (classical) nonparametric methods.
Bayesian Forecasting and Dynamic Models (Springer Series in Statistics)Bayesian Forecasting and Dynamic Models (Springer Series in Statistics) by Mike West
Buy new: $112.12 / Used from: $90.00
This is considered the "bible" of Bayesian forecasting.
Design and Analysis of Clinical Trials: Concept and Methodologies (Wiley Series in Probability and Statistics. Applied Probability and Statistics)Design and Analysis of Clinical Trials: Concept and Methodologies (Wiley Series in Probability and Statistics. Applied Probability and Statistics) by Shein-Chung Chow
Buy used from: $71.49
A thorough description of the process from design of trial and protocol writing to evaluation, but nothing on Bayesian statistics in clinical trials.
Bayesian Approaches to Clinical Trials and Health-Care Evaluation (Statistics in Practice)Bayesian Approaches to Clinical Trials and Health-Care Evaluation (Statistics in Practice) by David J. Spiegelhalter
Buy new: $76.50 / Used from: $69.98
A good reference if you're interested in using bayesian statistics in health research.
Baysian Nonparametrics via Neural Networks (ASA-SIAM Series on Statistics and Applied Probability)Baysian Nonparametrics via Neural Networks (ASA-SIAM Series on Statistics and Applied Probability) by Herbert K. H. Lee
Buy new: $49.50 / Used from: $39.99
I haven't had a chance to read this yet, but the author is a good friend of mine and he's brilliant.