Linux installer:
http://download.jetbrains.com/idea/idea-4.0.3.bin
Mac OS X image:
http://download.jetbrains.com/idea/idea-4.0.3.dmg
Windows installer:
http://download.jetbrains.com/idea/idea-4.0.3.exe
Generic UNIX (Solaris):
http://download.jetbrains.com/idea/idea-4.0.3.tar.gz
Windows zipped (no JRE)
http://download.jetbrains.com/idea/idea-4.0.3.zip
Windows zipped (including JRE)
You don't need eval key, evaluation period starts automatically. If you need a trial extension, contact sales@jetbrains.com.
from where can I get a eval license key for the UNIX version?
http://eval.intellij.net/evaluate/idea/1182/unix seems to be dead