Hello all....! Coming here seeking advice about a HDD upgrade for this machine. Coworker bought it in a garage sale but seems to him with little HDD space (160 GB). I want to hear/know your suggestions for this particular model, regarding brands, capacity, prices and even pitfalls doing this kind of upgrade. I know for sure this computer uses Serial ATA (1.5 Gb/s). I would like to hear real world recommendations about the issues stated above. As always, my gratitude for the help and advice.