The following packages will be REMOVED

[towel401]

Whenever I try to apt-get a kde-program it tells me its going to get rid of the following

 gambas gambas-gb-qt gambas-gb-qt-editor gambas-gb-qt-ext isdn-config jackd kasablanca kdar kdelibs4 kgpgcertmanager kpaint krecord libarts1
  libid3-3.8.3 libkcal2a libkdenetwork2 libkdepim1 libkexif0 libkipi0 libmimelib1a libopenexr2 libqt3-dev libqt3c102-mt libtag1 libtse3-0.2.7 noteedit
  noteedit-data rosegarden4 rt2500 skype

Why must gambas, isdn-config, skype & my wlan card tool die to install the latest version of k3b? can I have them removed and then later install them again or will it then want to delete the latest version of kde that k3b wants to install aswell?

[St. Joe]

Your biggest problem is apt wanting to remove kdelibs4.
That will leave your system completely broken.

You may want to post your /etc/apt/sources.list file.

Also, what is the output of this command:

# apt-get -f install

[towel401]

Reading package lists... Done
Building dependency tree... Done
0 upgraded, 0 newly installed, 0 to remove and 198 not upgraded.
W: Couldn't stat source package list ftp://ftp.nerim.net unstable/main Packages (/var/lib/apt/lists/ftp.nerim.net_debian-marillat_dists_unstable_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://cgi.sfu.ca ./. Packages (/var/lib/apt/lists/cgi.sfu.ca_%7ejdbates_debian_dists_._._binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems

# See sources.list(5) for more information, especialy

# This file may be edited by the MEPIS System Center
# Do not modify the comments manually!
# Change sources only in the section at the end of this file!

# Primary
deb ftp://ftp.ie.debian.org/debian testing main contrib non-free
#deb-src ftp://ftp.ie.debian.org/debian testing main contrib non-free
deb ftp://ftp.ie.debian.org/debian unstable main contrib non-free
#deb-src ftp://ftp.ie.debian.org/debian unstable main contrib non-free

# MEPIS cds
#deb file:/mnt/cdrom unstable main

# MEPIS pool - specific packages available on-line
deb http://2005.mepis.org/mepis unstable main

# DO NOT EDIT ABOVE THIS LINE
# mplayer
deb ftp://ftp.nerim.net/debian-marillat/ unstable main

deb http://cgi.sfu.ca/~jdbates/debian/ . .
deb-src http://cgi.sfu.ca/~jdbates/debian/ . .

deb http://apt.agnula.org/demudi testing local

[St. Joe]

The only problems I see from that output is that you have two sources listed that are not being properly archived so that apt can't access the packages they contain.

W: Couldn't stat source package list ftp://ftp.nerim.net unstable/main Packages (/var/lib/apt/lists/ftp.nerim.net_debian-marillat_dists_unstable_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://cgi.sfu.ca ./. Packages (/var/lib/apt/lists/cgi.sfu.ca_%7ejdbates_debian_dists_._._binary-i386_Packages) - stat (2 No such file or directory)

This is generally fixed with the following:
# apt-get update

However, if you still have problems then comment out those repos:

#deb ftp://ftp.nerim.net/debian-marillat/ unstable main

#deb http://cgi.sfu.ca/~jdbates/debian/ . .
#deb-src http://cgi.sfu.ca/~jdbates/debian/ . .

Now run your apt commands again:
# apt-get update
# apt-get -f install
# apt-get upgrade