[Fedora-livecd-list] caching repository?

[Tim Wood]

I've been (finally) setting up a local Fedora 8 Repository.  In the 
process, I've discovered that os+updates+development now approaches 
20G.  Given that a lot of that material is not relevant to me --at a 
guess 2G of the archive plus update and dev versions so 4-6G-- I 
realized a repository tool that only loaded things from an official 
repository when it was requested for the first time could be very 
useful.  Does anyone know of such a creature?  If not, would this be 
useful to anyone be sides me?

Tim Wood