Yes, the 18F2431 looks like a winner for my PWM construction. It is included in my PICkit2 programmer.
It comes in a 40 pin package. It would easily replace my 40 pin 16F887 on the solderless protoboard. To use it effectively I need to master ASM coding. I have not succeeded in cracking that nut.

Here is my latest stumbling block. I have an arrangement with some folks who are willing to contribute brand new HPI Racing Sprint cars to my project. I received my first new car last week. HPI has drastically changed the Electronic Speed Control. This is the package that translates incoming PWM signals (from the radio receiver or from my PIC) into outgoing DC current for the motor that drives the wheels. I am not doing well with the HPI WEB site getting technical information about this SC-15 WITH REVERSE SPORT CONTROL.

Ken