The main reference you'll use are the course notes. You should buy a copy from the Physics Office, including the binder, for $25. They are quite long (440 pages), but you can pick up a copy electronically:
You also need to purchase two lab books (a.k.a. ``log books'') for recording and analyzing your data. I recommend either the RPI "Department of Physics" spiral-bound lab notebook (about $5), or the more professional "Computation Notebook" (about $10).
I have ordered two suggested books which should be on sale at the bookstore. These are A Practical Guide to Data Analysis, by Louis Lyons (1991); and The Student Edition of Matlab User's Guide, from The Mathworks. Lyons' book is a nice, little paperback which collects a lot of the formulas and ideas we'll use for analyzing data. You'll likely do most of your data analysis with the program MATLAB, and the User's Guide will be very useful, although most of the MATLAB commands and concepts you will need are outlined in the class notes.
I expect that most of your data analysis will be done with MATLAB, a handy program for both simple and complex data manipulation. The program runs on RCS as well as on many PC's around campus, including the two in the Xphys lab. However, you may also purchase a copy for your own computer, either PC or Mac, from the ITS Product Center. The cost is around $80. Note that it comes with a copy of the User's Guide, so don't buy a copy from the bookstore if you plan to buy the software.
You can learn more about MATLAB from The Mathworks web site.
The notes refer to several books which are available in the Folsom library. I've put them on reserve for your convenience. I may also have copies of these books myself, and you're welcome to borrow them from me for a short while.