Never noticed this thread before but its really good. found a couple of tools I'll be using in the near future
Here's my list
HTML/CSS/JavaScript/Imaging/Flash - Adobe CS3 Master Collection
PHP - NuSphere PhpEd
RegEx's - RegexBuddy
MySQL - Navicat
FTP - CuteFTP
As mentioned above, Mozilla Firefox is by far the best and should really be the only browser
Jay