Lpc2000

I'm thinking of laying out a board for the LPC210x.  I don't need 
much to get started, but if I'm going to put the effort into it, I may 
as well attempt to make it useful to other people.  Features I'm 
thinking of:

    MMC slot (SPI)
    MCP23016 16 bit port expander (I2C, perhaps two of these)
    64K bit FRAM memory (I2C)
    PCF8563 RTC (I2C)
    A/D converter (I2C) (unspec'ed.  8 channels, 10 bits?)
    RESET, INT0, INT1, INT2 pushy buttons
    DS18B20 temperature sensor (1-wire)
    DS2411 silicon ID (1-wire)
    DS2405 addressable switch (1-wire)
    JTAG interface (both ports, Wiggler compatible)
    UART0 MAX232 (or equivalent) level shifter, DB-9
    UART1 MAX232 (or equvalent) level shifter, all control lines, DB-9
    7-30V AC/DC input, 2.1mm coaxial (possibly switcher, probably linear)

    1st MCP23016 would include 8 LEDs and 8 switches (rocker or pushy?)
    2nd MCP2306 would be uncommitted, but have standard 14 pin LCD 
connector.
    LCD bias would be 0-5V, settable via a pot (or 1-wire digipot?)
    I2C and SPI availabel on headers
    5V @ 500ma, 3.3V @ 100ma available for user
    All I/O pins brought out to headers
    All I/O pins disconnectable from devices on board via jumper headers
    Prototyping area?  (I prefer to use connectors, rather than munging 
up cards)

    Anything I missed?  Anything any absolutely must have? 

    --jc