mac pc rig stack development

As a Drupal semi-newbie I'd find it educational to know what more experienced Drupal developers use in terms of hardware, software, workflow, etc.

So what's your set-up? It would be nice to be able to build a best practice superset from lotsa people's set-ups.

My set-up is currently:

PC Pentium 4 CPU 3GHz
1BG RAM
160GB HD
Windows XP SP3

• xampp for localhost
• WS FTP Professional for FTP-ing to and from production site
• Peazip for unpacking D modules

• phpMyadmin

• Firefox for building/administering Drupal sites

• Firefox plugins - Yslow