Which web development tools do you use?

I use Apple computers for pretty much everything I do. My main machine is a dusty, first generation G5 (single 1.8GHz PowerPC with 2.5GB of RAM) running the latest version of OS X. I have two 17” Apple LCDs (the older clear models) with screen spanning enabled. I usually have the following applications open:

• Photoshop CS (I own CS2 but still haven’t upgraded)
• TextMate
• Safari (primary browser)
• PHPfi
• Transmit
• BBEdit
• MAMP
• iTunes
• Mail
• Firefox (for debugging CSS and JavaScript)
• Remote Desktop Connection (allows me to access the bargain PC running XP I hide in the closet and use solely for testing)

When I travel or speak I rely on a capable 14” G4 iBook (1.2GHz PowerPC with 1.25GB of RAM).