creating a repository to mirror current system setup

["myren, lord" <thefowle@wam.umd.edu>]

hello,

i'd like to create a central repository for my network based.  i'd like 
for its contents to be everything i have installed currently on one 
machine, namely a patchwork set of programs from unstable and testing.

any further package configuration & tweaking beyond this would be an 
added bonus.

ideally i could do this with some sort of cacher like apt-proxy or 
apt-cache so i wouldnt have to maintain an entire copy of the archive on 
my system.

any idea on how to get started?
thanks
Myren