I've exported CQWPs and customized them to reference additional fields
in my rollup lists and display them with xslt templates I've added to
itemstyle.aspx (ala Heather's article
www.heathersolomon.com/.../CustomItemStyle.aspx).

I've done this to create my own Calendar, Announcement, Task, and
Issues rollup web parts so I can reference all of the fields common to
those list types in my cqwp itemstyle xslt.

I'd like to make these web parts available across my entire farm, but
don't want to have to upload separately into each site collection
gallery.

Is there a way to deploy these .webpart files with stsadm directly or
to package them up as solutions?