Okay so I’ve encountered many softwares over the past while which I haven’t tweeted about so here do’s (in no particular order):

TV Shows:
Daemon to stay tuned and download your latest tvshow torrents. Can browse an extensive list, set quality (hd/sd) and frequency of check.
http://tvshows.sourceforge.net/

Transmission:
Super small and lightweight Bit torrent client. Has ability to create torrents, watch folder (handy for the TVshows daemon). Integrates with Growl.
http://www.transmissionbt.com/

Growl:
OS enhancer, which displays application events. Supports a wide variety of applications.
http://growl.info/

WinSwitch:
Windows styled, hotkey (CTRL+ALT+DEL) activation to lock desktop/switch users.
http://wincent.com/a/products/winswitch/

Adium:
Multi-client IM (MSN, ICQ, Gtalk, AOL, etc)
http://www.adiumx.com/

Free Ruler:
On screen ruler for design/developing needs.
http://www.pascal.com/software/freeruler/

Quicksilver:
Application starter
http://www.blacktree.com/

LAME for Quicktime
LAME MP3 codec for exporting mpfree’s in Quicktime
http://www.kjams.com/wiki/index.php/Lame

TextExpander:
Snippet application for consistantly writing abbrieviations.
http://www.smileonmymac.com/textexpander/

And some noteworthy webapps:

twitter.com
A announcer, sub-blog thing.. Nearly a blog but not really. Just send what you’re up to, to twitter via sms, email, IM and it will broadcast to your people who are following you. Mobile notification is also supported. Don’t tell advertising companies though. They may profit from it!!

seeqpod.com
An ultimate search resource for music and music videos. iPhone compatible.