Building custom spins interactively for embedded targets

Hi all, I've been looking recently for a piece of software that would allow me to build a custom, Fedora based distribution for an embedded system. Basically I would like the tool to: 1. Select yum meta-packages and gradually populate my distribution (fine grained selection) from the standard repositories. 2. The tool would automatically pull-in the dependencies 3. Visualize at any moment the associated rpm packages that I'm going to install (and cross-compile) on my target 4. Identify and determine the srpms that I have to cross-compile to my target 5. Create the basic build system environment for the cross-compilation, that's download the srpms to a location and provide a basic rpm repackaging scripts. 6. GUI based, if possible Do you know if such a magic tool exists? It would be really awesome.. I'd like to prepare a Fedora environment for my Beagleboard, which is an OMAP, ARM based board. Regards, Ilyes Gouta.