What are your must-have applications? Here’s a list of mine.

TextMate

Macromates’ superb script-driven text editor for Mac OS X. I use this mainly on PHP files for work, but I also use it for blog posts (like this one), as its built-in support for HTML Tidy, and the very handy ‘lookup selection on Google and link’ macro are incredible timesavers. Also, the mate command-line tool is extremely handy, especially since you can pipe other things into it (like curl downloads).

Fugu

An excellent Mac OS X front-end for OpenSSH’s sftp client. Supports TextMate and various other external editors.

curl

Need a file from the web? Forget ‘download managers’ - curl has your back (though wget is also very good for recursive downloads). I use it extensively to grab XML files from our repositories at work - and pass them to other things, all on the command line. Also useful with the curl -I URL command, to check broken headers. Available for every platform under the sun, too.

Safari

Still the best browser for the Mac. Gotta have AcidSearch and SafariStand though.

Vienna

An excellent Mac OS X open-source RSS/Atom syndication client. Loads faster than anything else. And plus, I helped to write the MarsEdit AppleScript for it.

EyeTV

My TV, video recorder, and source of endless numbers of movies to watch!