Just been playing with my new MB. I was holding out for the 2GHz version, but my local Apple store had the 1.8s in stock, so couldn't resist. Anyway, got it home, loaded up some apps and it's not as fast as I expected. It definitely needs more RAM. Switching between apps can be very slow. Even the smallest apps such as MS Messenger. I have iChat, Mail and Safari open at the moment and Activity Monitor shows just 8MB physical RAM free(!). I have installed MS Office, which takes a little while to open up, but once it's open it's ok. Switching to another app takes a while, with lots of beach balls. I never had this with my PB. I have ordered 2 x 1GB sticks of RAM and gonna rip out the 512MB stick. That will give it a new lease of life. This isn't a rant just as such, just a pointer to anyone thinking of getting the 1.8 MB and not thinking about upping the RAM... Do increase the RAM otherwise you will be disappointed.