tracking new Dapper and Debian sid versions of certain packages

Hello.

Is there some easy way/tool allowing me to track new
versions of certain packages in Dapper and Debian sid?

I sometime (back)port some packages to Breezy; current examples are:

mc 1:4.6.1-1ubuntu2   - taken directly from Dapper
xmoto 0.1.7-1~0shot1  - rebuilt from Dapper
dosage 1.5.5-1~0shot1 - rebuilt from Debian sid with lessened build-deps

What I'm looking for is a way to get notified when one of these packages
changes in Dapper, changes in sid or reaches Dapper for the first time.

Cheers,
-- Shot
-- 
             It is impossible to imagine Goethe or Beethoven being
             good at billiards or golf.           -- H. L. Mencken
====================== http://shot.pl/hovercraft/ === http://shot.pl/1/125/ ===
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