yumdownloader use cachedir?

[Frank Murphy]

I can download i686.rpms on a x86_64 box 
using a list from a i686 box using:

yumdownloader --archlist=i686 --releasever=19 `cat
fedin.list`

But, they download to current dir.
Getting them to download to the F19 ~/cachdir
is catching me at the moment.
I could specify a download-dir.
But, that wouldn't allow for boxes on updates-testing.
Brain on the fritz as always.

have also looked at repotrack, repoquery, reposync.