So here's the big picture....textbooks are expensive and budgets for everyone are tight. Most physics texts are essentially identical in broad content and presentation. Since you can get slightly older editions of any typical text for less than $40 why wouldn't you. For my classes I write my own homework problems (sometimes better, sometimes not) so there is no reason to buy a particular text. In addition, there are starting to be a significant number of open source texts that are very much like the traditional texts. Over the last 20 years a particular field of research called Physics Education Research (PER) has developed and helped teachers better understand the specific challenges of learning physics.

Randall Knight's text call Physics for Scientists and Engineers (Pearson) is heavily based on insights from PER and is a great choice if you wish to have a good learning tool and future reference. In addition this is the text for the Wendi Wampler's section of PH211 so if there is a chance you will be in her class in a future term (PH212 or 213 come to mind) you might want to get this book anyway. For me you could certainly get a used or older edition. If you join Wendi's class you will need to purchase access to Mastering Physics for your homework.

Reasonable choices for texts:

Physics for Scientists and Engineers; Knight

A newer text based on PER concepts and ideas. Look on Amazon for 2nd edition used for less.

Motion Mountain (pdf)

A different, more descriptive approach to physics. Lots of interesting insights. Open Source. 53 Mb

Light and Matter (pdf)

Another well written open source physics text. 31 Mb

Rad Physics (pdf)

A fairly unique approach to phyiscs that develops from a more modern physics perspective. 1.5 Mb

St Anshelms pt1, pt2 (pdf)

This is an open source version of a very traditional physics text. All the usual proofs and descriptions here. 2 Mb each