I need a linux distribution which is modular and configurable. For instance I need a kernel with special touch screen support. Other than that there are only a few apps which should be installed. Therefore I want to be able to configure which packages are to be installed. Gnome as the standard desktop environment would be a bonus. It should be able to start from an USB stick and have a installation tool which I could use to install it to the harddrive. I want to be able to run the build of the distro unattended.
Is there a distro which fullfills all those requirements?
The only (life) distribution I have experience with is Knoppix, but remastering is very time-consuming, not unattended, and not quite modular.
Update: Maybe I should be a bit clearer. I need a customizable distribution. I want to be able to, lets say check a few boxes which software should be installed, click a button and 15 min later I have my image which I could copy on a USB stick.