VirtualBox (free from virtualbox.org) running on top of whatever Windows, Mac-x86 or Linux system you have.
Debian or Centos as the operating system that you run as a VM inside VirtualBox.
You should be able to easily install Python, Ruby, TCL, Lisp, etc. on either platform for development language; Apache or NGINX or Lighttpd as the web server; Emacs or Eclipse or whatever as the editor.
For a project I'm on right now we're using VMs w/ Debian on developer workstations. Deploying the app is a tarball & a shell script on top of a base Debian install. Any time we need a new public server we spin up a new EC2 instance (Alestic Debian) & run the script.
Ticket tracking is a Google Spreadsheet w/ some formulas to calculate ticket sort orders, estimated completion dates, etc.
Debian or Centos as the operating system that you run as a VM inside VirtualBox.
You should be able to easily install Python, Ruby, TCL, Lisp, etc. on either platform for development language; Apache or NGINX or Lighttpd as the web server; Emacs or Eclipse or whatever as the editor.