Don't feel like you need an expensive TI graphing calculator, because most professors won't let you use them on exams anyway. Consider a decent scientific. I'm in my 2nd year of college and in Calculus III for Engineers and Linear algebra and all I've needed is a good scientific - mostly the Casio FX-115ES Plus2. It's like $15 online and in stores. The Casio fx-991EX ClassWiz ($20) is pretty good too and has a much higher resolution screen for like $20. It has Table, Statistics (regression functions), and Distribution apps.
I am taking that course right now (final is on Friday). CAVEAT: This is my second time through calculus - I'm taking this as a refresher.
The course is structured into eight modules. Modules 4 and 8 are the midterm and final exam respectively. In a normal semester, you would study one-half of a module each week, but in the compressed summer schedule, you need to finish a module a week.
I really like how the homework is structured. You enter your answers online, and get immediate feedback. You get three tries at a particular question before it locks you out for that particular answer, but you can try the question again; the system generates a new question with new numbers. There is no reason not to get 100% on your homework.
You can have a second attempt on a quiz if you have at least 80% on the corresponding homework assignment.
You are allowed any non-graphing, non-CAS calculator. The only graphing calculator allowed is the TI-84 Plus (including the CE model). If you are looking for a calculator, I recommend the Casio fx-115ESPLUS2; it will come in handy for calculating partial sums of infinite series. It also does numerical integration and differentiation so you can check your answers, and has push-button decimal-fraction conversion. It is also only $16. 🙂
You are provided with formula sheets that are entirely adequate for the exams. Print them out and use them on your homework and quizzes so you learn where all the information is.
Feel free to PM me if you have more questions.