Hello Henry,

Check out these MCU's from Dallas semiconductor. Now a part of
Maxim IC (http://www.maxim-ic.com). You can get free samples in 40
pin dip's. Below is some information available for this chip. It
really is a super duper 8051.

Regards,

Charles Bannister

DS89C430/DS89C440/DS89C450
Ultra-High-Speed Flash Microcontrollers
===========================================
GENERAL DESCRIPTION
The DS89C430, DS89C440, and DS89C450 offer the
highest performance available in 8051-compatible
microcontrollers. They feature newly designed
processor cores that execute instructions up to 12
times faster than the original 8051 at the same
crystal speed. Typical applications will experience a
speed improvement up to 10x. At 1 million
instructions per second (MIPS) per megahertz, the
microcontrollers achieve 33 MIPS performance from
a maximum 33MHz clock rate.
==============================================
Don't know how to program it check out this application note.
App Note 3477: Using the Free SDCC C Compiler to
Develop Firmware for the DS89C420/430/440/450
Family of Microcontrollers
==============================================
Here is some software which runs on a IBM pc which can
program the MCU
Microcontroller Tool Kit (MTK) from Dallas Semiconductor
http://www.maxim-ic.com/products/.../index.cfm

Link to FTP archive (370K) Microcontroller Tool Kit
Microcontroller Tool Kit (MTK) is a PC-based application in the
programming and debugging of microcontrollers manufactured by
Dallas Semiconductor. This software requires Windows 95 or more
recent operating system, and an open COM port. It allows an
embedded system designer to program and configure Dallas
Semiconductor microcontrollers equipped with a ROM/bootstrap
loader

ftp://ftp.dalsemi.com/pub/microcontroller/dev_tool_software/mtk/

==============================================
I built this programmer using chips I had on hand
http://members.aol.com/cpu8052/DS89CxxxPGM.GIF
Here is another schematic of programmer.
http://members.aol.com/cpu8052/ds88c450.gif