Originally Posted by Due

And would it be different if I worked from a stationary computer ?

You really don't get far with 120GB these days.

When I hooked up my new mac yesterday it downloaded 1.5 GB of updates, it was shipped with Lion already installed.

Not sure what you do but with only 120GB I'd have to constantly delete files etc which is really not something I want to spend so much time on. My mails alone would take more than 5% of the total disk space I'd have available.