Wait for tax season...
RJ-
I'm just trying to keep it really simple only b/c taxes,etc can get quite confusing/frustrating...
1) Save all your receipts for school and books, get an itemized bill.
2) Buy TurboTax next tax seaon, and it will calculate all that you are eligible for (you can write it off next tax season).
Doesn't seem like a lot of advice but again, taxes can be quite complicated and dependent upon a lot of things (married, single, kids, degree already, etc, etc.). So, to give you a "blanket" answer on this might only lead to more confusion/frustration. Some people are more eligible than others, some will get more than others, etc. depending on many things.
I'm sure you would have done this eventually- but also just google "Hope Credit" "IRS" and you will see all the variants that involved and just how much you may be eligible for.