Office Depot has the Texas Instruments® TI-83 Plus Graphing Calculator for $99.99 with a $10 MIR and free shipping. Add a small filler item, like this
ball point pen to get your order above $100. Then apply coupon code 11525859 to knock $25 off.
Feautures:
* 160 kb flash ROM and 24 kb RAM for electronic upgrades and applications.
* 8 line, 16 character display
* 7 graphing styles
* Functions include financial, calculus, trigonometry, equation, statistical
* Batteries and hard case included
Texas Instruments® TI-83 Plus - By Texas Instruments - From OfficeDepot - Compare Prices, Reviews and Buy at NexTag - Price - Review $10 MIR
Texas Instruments® TI-83 Plus Graphing Calculator $65 AR + FS 
