My boot partition is 1gb.
Enough for having all the soft needed, and enough fast to handle in case something happens.
I do have several partitions after that one 500mb (for backup) one 2gb for Mac, one 3,5 as storage drive. And then two huge SFS ones for ordinary use.
However, Karlos, i needed to patch my OS 3.5 after installation (including boingbag 1 and 2) to have my 40gb hdd recognised properly and all the space available.
Are you sure that feature is not only for OS3.9?
I hope we will seee that 4000 working 100% soon!!!