Hello, I have been a Mac user for about a year and a half and have been reading these conferences for about the same amount of time but this is my first contribution. I have a late-2005 12" iBook G4 (1.33ghz, 60gb HD, 768mb RAM). I use my computer for what I assume to be processor-light applications - mainly iTunes, iPhoto, Safari and Word. I am very happy with it and particularly like that it runs so quiet (fans only come on when watching movies), how portable it is, and it's battery life. However I have some spare cash and was thinking about upgrading. I could either up the RAM to 1gb or even 1.5gb. Or I could wait until Leopard comes out and buy a Macbook (financed partly by selling my iBook on Ebay as they appear to have great re-sale value). Or of course I could do nothing at all, as I am very happy with how the computer works. So the question is - would increasing my RAM result in a notable performance gain for my uses? And if I decide to upgrade to a Macbook when Leopard comes out - do the Macbooks run as quiet (and cool) as my iBook? Is the 13" form factor considerably less portable than my iBook? Thanks for any advice you guys have.