general thought about partitioning in install

[Master of Reality]

I just had a bit of a thought about installation of distros and partitioning... I think it would be a rather good idea to have an option in at the partitioning process to automatically size to fit to the amount of space needed.... meaning:
That you partition it to say.. 10GB and after choosing the packages (which comes after partitioning) you should have to option to size the partition to the size of what will be installed (with some space left over for personal files).

Just a general thought... its not like its difficult to "resize2fs" (or reiser or whatever your filesystem is) and fdisk the disk, but it would be quite user friendly to do it in the install for you.