Some awsome programers have made some killer tools for Linux, for free.
Until I deleted my Win2000 partition, I had no idea how much cool stuff is out there.
This page is here to supply links the coolest resources I have found

Better than ICQ This is much better than icq,
It has a "utilities," alternate skins, icons, and sounds
and it fully supports xwindidows display export (over ssh).
Sniffer, that uses script filters Etherpeek is expensive and building your own filters isn't tangable form most people.
If youneed to be able to focus on a mac address or a IP, this will do it.
My favorite editor If you are shopping for a good, small, syntax hilighinging text editor,
this is for you. Who needs the bulk or cost of slickedit.
What ports are open? How do you know what ports are open on a machien?
Or machine on your network is creating loads of trafic, but you don't know why.
This will let you see what ports/services are active on the machien.
Need a GUI for SAMBA? Until the corts have some effect on the industry,
you'll need to interact with windows systems
This is the best, slick tool for mounting, and viewing network shares.
Who Needs WsFTP Alexander Yukhimets did a bang-up job on this utility.
It looks good, and works good, but
it still doesn't use ssh... but it's functional."