Fedora Core
Do you know that Linux automatically scales CPU utilization depending on processing requirements? This reduces power consumption and heat.
In Linux wine (or crossover office if you like to pay) is used to execute Windows applications.
I tried installing Thunderbird 2 from Fedora Core 6 Development Respository, the file actually belongs to currently in development Fedora 10.
Login as or su to root and run:
yum -y install pcre zlib lighttpd
That's it folks!
Note: The -y saves you from ok'ing the download & installation.