What to do after installing ubuntu ?

I have been using linux since the days of Fedore Core 3. I finally settled on Ubuntu because it appeared easier to learn than fedora, and just a few commands are enough to manage the OS. I have tried Fiesty Fawn, and now I am using Hardy Heron.
Here I list some of the best softwares which I found useful for me. These are not part of the OS included in the installation CD. Also, I have not arranged them in any order, it is just a random numbering.

1. Cheese : This is a webcam utility and works very well on ubuntu. There are options for both video and image capturing. Also there are some cool effects which can be applied over the captured image and video.
Cheeze can be downloaded here

2. Azureus : The default torrent client in Gnome is transmission, which doesn't seems to have any rich features. I found azureus better than utorrent, which I use in windows. But this requires Java to be installed in the system.
Azureus can be downloaded through : sudo apt-get install azureus

3. Empathy Instant Messenger : Google supports Open Source projects, but many of its own products dont run on linux. Gtalk is something whihc all of us miss on ubuntu. We can use gtalk account in Pidgin,Kopete but the feature of voice talk is not available using google account on any of these. Empathy is one great IM in linux which supports voice chat over gmail.
Use the guide here to install empathy

4. Skype : For video chat in ubuntu, yahoo has not released any linux counterpart. I have build Gyache on ubuntu, but it still doesn't work :(
Skype is a good alternative for both audio and video chat.
Download skype here

5. Pidgin : Supports a host of chat protocols. All in one IM.
Download it here.

6. Avidemux : This is the best and easiest video converting tool, suitable for newbies.
This can be installed :sudo apt-get install avidemux

7. VLC Media Player : This media player plays most of the video formats out there. And has got audio equaliser, which is missing in many audio/video players available for linux.
Can be installed using : sudo apt-get install vlc

8. NTFS configuration utility : For accessing Windows partition with write permissions.
Install it using : sudo apt-get install ntfs-3g

9. Gmount-iso : Using this .iso CD image files can be mounted and you can save the cost of burning a blank CD.
Install it using : sudo apt-get install gmountiso

10. Desktop Effects : For enabling desktop effects, install the linux drivers of your graphics card. For my nvidia 8400 Go, I downloaded the installer from Nvidia site. Run this installer from command terminal (Ctrl+F1), after shutting down gdm ( sudo /etc/init.d/gdm stop).
After the installation is complete, enable desktop effects from
System -> Preferences - > Appearance - > Visual Effects - > Extra

11. Wine : If you miss windows application, then you can try running them on ubuntu using wine. Wine is a windows simulation program on linux.
Install wine through : sudo apt-get install wine

There are some other worth mentioning like Adobe Acrobat Reader, Ubuntu-tweak, Real Player, Mplayer, Opera web browser, Emerald Themes, Compiz-Settings-Manager, Google Earth etc.