Once you have Debian installed, you can look them up easily enough. Of course, that doesn't help you much. Some of the sub-items are meta-packages. That means they install clusters of things at once. Check the packages page at
http://www.debian.org for more details.
Edit: these lists were made on a Lenny machine, so the exact packages from an Etch install may differ.
tasksel --task-packages desktop
hpijs-ppds
twm
eject
foomatic-filters-ppds
openoffice.org
xserver-xorg-video-all
openoffice.org-help-en-us
foomatic-db-hpijs
hp-ppd
cupsys-driver-gutenprint
cupsys-client
avahi-daemon
foomatic-db-gutenprint
openoffice.org-thesaurus-en-us
cpufrequtils
myspell-en-us
vbetool
xdg-utils
xorg
cupsys-bsd
iceweasel
xserver-xorg-input-all
hplip
desktop-base
alsa-base
libnss-mdns
xterm
cupsys
alsa-utils
anacron
foo2zjs
printconf
hpijs
menu
gimp
kerneloops
openoffice.org-gcj
uswsusp
foomatic-db-engine
tasksel --task-packages web-server
libapache2-mod-python
apache2-doc
libapache2-mod-php5
libapache2-mod-perl2
apache2-mpm-prefork
analog
tasksel --task-packages fileserver
smbfs
netatalk
smbclient
swat
samba-doc
winbind
nfs-kernel-server
samba
smartmontools
tasksel --task-packages print-server
printconf
openprinting-ppds
hpijs-ppds
hpijs
foomatic-db-gutenprint
cupsys-bsd
foomatic-filters-ppds
hplip
foomatic-db-hpijs
hp-ppd
cupsys
cupsys-client
cupsys-driver-gutenprint
foo2zjs
foomatic-db-engine
tasksel --task-packages mail-server
procmail
qpopper
spamassassin
exim4
sa-exim
mailagent
exim4-daemon-light
mutt
mailx
exim4-config
uw-imapd
tasksel --task-packages database-server
postgresql
postgresql-doc
postgresql-contrib
postgresql-client
tasksel --task-packages dns-server
dlint
dnsutils
lwresd
bind9-doc
bind9
tasksel --task-packages laptop
acpi-support
hibernate
acpi
powertop
apmd
radeontool
anacron
wireless-tools
cpufrequtils
nvclock
wpasupplicant
vbetool
acpid
pcmciautils
toshset
bluetooth
avahi-autoipd
uswsusp
aptitude search ~pstandard -F %p
at
bash-completion
bc
bind9-host
bsd-mailx
dc
dictionaries-common
dnsutils
doc-debian
doc-linux-text
exim4
exim4-base
exim4-config
exim4-daemon-light
file
finger
ftp
gettext-base
iamerican
ibritish
ispell
less
libbind9-30
libdb4.5
libdns32
libevent1
libgc1c2
libgpm2
libgpmg1
libidn11
libisc32
libkrb53
liblockfile1
liblwres30
libmagic1
libnfsidmap2
libpcre3
librpcsecgss3
libsemanage1
locales
lsof
m4
mime-support
mlocate
mpack
mtools
mtr-tiny
mutt
ncurses-term
nfs-common
openbsd-inetd
openssh-client
patch
pciutils
perl
perl-modules
pidentd
policycoreutils
portmap
procmail
python
python-central
python-minimal
python-newt
python-selinux
python-semanage
python-support
reportbug
selinux-policy-refpolicy-targeted
sharutils
strace
tcsh
telnet
texinfo
time
w3m
wamerican
whois
