Ok, I inherited this machine and it's in great condition but I have a few issues in getting this baby up to speed. (My dad owned it and never updated it at all.) 1. Right now it's running 10.1.5 and I want to install 10.4 - Do I need to install 10.3 before 10.4? (This is what I was told.) My question is, why? 2. (Related to the first question) - if I do upgrade to 10.4 is it gonna bog down the speed. It's got 256 Megs of RAM in it now and it's surprisingly fast as is. Is 256 Megs of RAM gonna be enough to run the new OS and how much can this model hold anyway? 3. I need to install an Airport card in it and I did some research and it turns out it only takes the original one. I've seen them on Ebay for pretty cheap but also saw a website that was charging $80 for them. Anyway, do I need software to install it or can i just put it in? That's about what I need to do to get it where I need it. It's only going to be used to surf the net and stuff like that anyway. Thanks!