What would be recommended (and still available) to meet these criteria.
New would be great

but I accept second hand

USB1 or serial or parallel port connection
Runs on Windoze 98 with only 64 meg of ram
Mono/colour (prefer mono) CCD/CMOS with small to medium format (6mm-12mm though larger would be great)
gain near unity or lower (0.5e-/ADU)
Not necessarily cooled. (not being used for "pretty" imaging" but cooled would be nice)
Max exposure 30-60sec (longer would be fine)
now the crunch.....
for a couple of hundred bucks.
Come on...make my day