I am looking for a replacement calculator for my aging Casio FX4500P.
Probably the "baseline" Casio calculator at the moment is the FX-7400G Plus.
This is a graphics programmable like the -4500, but has much more memory and
greater capabilities all around. These run $20 on eBay recently, twice that
in stores.
The CFX-9850GB Plus is a color graphics programmable with financial
functions and a built-in program library. These run around $25 on eBay
recently, and again twice that in stores.
Followups set to alt.calculator.casio.