I have an old iMac G3 /500 mhz graphite from my old work sitting around just for my little one to play cd games. I use PC now to do my emailing and net-surfing, but gotta admit I used to love this machine, and though it's old it still looks cool. I didn't get around to connet it to go on-line, because of compatibility problem with PC(main cable modem is connected to a PC) but now thinking about upgrading it to go on-line for my kids to use. It has OS 9.0.4, 128MB of RAM with speed of 500 mhz w/front slot loading. I'm not computer savvy and don't know much about it, but was told before that system has to be upgraded to OS 9.1 or later first, in order for wireless card to be installed. Can anyone help me with exactly what I need to go on-line with this imac? Since it's going to be mainly for my kids, I do not plan to purchase any additional application software, but willing to spend some to upgrade system, memory, and on wireless card. I'm thinking I might not even need newest system as long as it can go on-line, but which OS system(or should go higher?) would make more sense? How much more memory?Is it really possible to install a wireless card on this machine? Would there be a problem because main cable is connected to a PC in which wireless router is installed(for another window laptop)? Or is it even worth trying? Appreciate any advice you computer genius out there could give me! Thanks in advance.