I am looking to buy a digital camera to use with my old computer?

my computer is a hp pavillion 8630 with a 500mhz intel celaron prosessor. My budget is about 50 quid im looking to get one second hand and am looking for a good software package for windows 98. I dont want to shell out for a camera and software that my old computer struggles to keep up with as its slow at the best of times. Thank you for taking the time.