I worked until Sept (made 95k) and then became a full-time student. Should I buy a computer to reduce my taxable W2 2016 income? Or wait until 2017 (I'll earn much less)?

I worked until Sept (made 95k) and then moved to a new town and enrolled as a full-time student. It's Dec 31st tomorrow and the last day to take any take write-offs. Should I buy a computer to reduce my taxable W2 2016 income? Is that even possible? I don't have a schedule C this year. 

My other option is to wait until 2017 when I'll be earning much less and would qualify for the Education Credit. 

If I can deduct the computer of my taxable 2016 income, I'd prefer that. I'll find more things to deduct off the 2-4k Education Credit for 2017.

Thank you