So, my brother who is 9 needs a computer. He only does web browsing and that's it. So, should I go with the iBook G3 (cheapest option), PowerBook G4 (A tad bit cheaper than a netbook, although I really haven't looked around at prices too much), or a netbook (probably most expensive although I'm not sure). Also, I realize that the Macs don't support Snow Leopard and won't support Lion. Which is best for web browsing? Portability is also a plus.