I've been planning for a 500 GB 7200RPM hard disk for a long time but have been refraining because of the things some of my friends have been telling me. My configuration is AMD Athlon XP 2400+ 2.0 GHz processor, 128 MB 266Hz DDR RAM + 128 MB 333Mz DDR RAM, 40 GB 5400RPM Hard disk, many of my friends have said that at my current configuration, an additional Hard Disk would risk the failure of my PC. How much are the chances of such a failure ? Another thing I'd like to ask is that how much a 500 GB Hard Disk is going to cost me ? I asked the price of a 250 GB piece at a branded electronics store to be around Rs. 3000 and that isn't very encouraging.