Here is a list of the various types of hardware that I have been looking at using
Original Set
XC9500 5V CPLD
CYPRESS - CY62148 512KB 5v Low Power SRAM
ATmega 5V
Full size - SDCard
Current Set
XC9500XL 3.3v CPLD
CYPRESS - CY62158 1MB 3.3v Low Power SRAM
MicroSD - Transflash 3.3.v
Micron 256Mb SDRAM 3.3v (32MB) would use 4 chips for 128MB - would emulate 4 - 32MB partitions
ATmega 5v