gpg: export just my keys, not whole keyring?

[Matt Price <matt.price@utoronto.ca>]

hi folks,

I'm building my own verison of a ubuntu install cd, which involves
building a new package of ubuntu-keyring, which involves, I htink, 2
things:

1 -- exporting my gpg keys to a keyring
2 - merging that key into the existing ubunu-archive-keyring

problem:  when I type what I think is the right command for
export, 
gpg --export > ring.gpg

I get a huge file (don't have room for it!)
even :
gpg --export matt.price@utoronto.ca > ring.gpg

is way biggerthan the whole ubuntu keyring.  surely there's some way
to narrow downthe number of exported keys more finely?

And if so, isthere a standard way to merge 2 keyrings, so that my key
is incorporated into this custom version of the ubuntu-keyring
package, without eliminating all the already-existing ubuntu
developers?  

the whole process seems to me a little cumbersome, and all the more so
since I nhave no real idea about gpg, mini-howto notwithstanding.
Help greatly appreciated!

thx,

matt

--------------------------
 .''`.       Matt Price 
: :'  :      Debian User
`. `'` 	     & hemi-geek
  `-     
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