preseed bare-bones install

[mike@opendns.com]

Good morning debian booters,

With the help of http://wiki.debian.org/DebianInstallerPreseed and the
sarge 3.1r1 netinst prepackaged iso, I have a working preseeded network
install of debian going, no external input necessary by operator save the
power button.  However, I'm trying to slim down the install as much as
possible.  In my preseed file, I have the line

tasksel tasksel/first multiselect ""

But it seems many things I don't need/use are still getting installed -
like python, hotplug, etc...  How can I preseed the install so that I can
avoid these packages?

Thanks much, take it easy.

Mike