The plastic iMacs (before they went aluminum) were a pain to self-service. I called a local Mac servicing company to upgrade the HD and they refused to do it, b

The plastic iMacs (before they went aluminum) were a pain to self-service. I called a local Mac servicing company to upgrade the HD and they refused to do it, because the logic boards were so fragile that they would frequently break in servicing. I eventually did it myself, and it worked for the first upgrade. Last year, when I tried to upgrade again to an SSD, my logic board went kaput. Good thing I didn't consider it a huge loss. Being a Core Duo, it was getting pretty long in the tooth anyways.