The next generation of elementary OS is here : Luna. Lightweight and beautiful. All-new apps. A refined look.
Based on Ubuntu 12.04 LTS ( (Precise Pangolin).
After you have installed a copy of Elementary OS, it's wise to check the recommendations on this page : Top Things To Do After Installing Luna.
Following the above link, the things I did were :
Check for updates and installing them. In a Terminal :
sudo apt-get update && sudo apt-get upgrade
Adding a community ppa : Elementary Update :
sudo apt-add-repository ppa:versable/elementary-update
sudo apt-get update
Then install Elementary Tweaks, a improved System Settings ( Switchboard ) :
sudo apt-get install elementary-tweaks
For package management I use synaptic and gdebi :
sudo apt-get install synaptic gdebi
To upgrade the kernel :
Applications > Synaptic Package Manager and I looked for the highest number
linux-image-3.8 ( Synaptic > Quick Filter ).
Watch on Youtube : Customizing Elementary OS