Ok, here's my situation... I have an ibook 900, and although I like it a lot, I'm thinking about selling it and buying a new 12" powerbook. I would want to do it soon, since taking advantage of the "buy a bundle" promotion would be a big factor in my decision. But I'm wondering how big the performance difference would be between these two machines. I know there have been many discussions of the 12" 867 compared to the ibook 900, and the ibook only really was slower in altivec tasks. However, the new 12"er has (compared to the old powerbook) a 133mhz faster processor, twice the L2 cache, and a faster video card. (am I missing any differences between them?) So my question is, how much of a performance improvement will I see with the powerbook over the old powerbook, and by extension, over my ibook? In particular, I'm wondering how good the nvidia GeForce FX 5200go is. Thanks.