[This was updated 12/16/2008 with the most recent software I am using]
7-zip - This program will handle nearly any type of compressed file. Its pretty solid and supports drag and drop. - Replaces WinZip & WinRar
Daemon Tools - Daemon tools is a CD emulator, needed if you want to mount CD or DVD images. This download is freeware, but it comes bundled with a spywareish toolbar which can be deselected from the install. - Replaces Alcohol 120%
Filezilla - This is a great FTP program. It keeps getting better with every new release. - Replaces lots of less fun FTP applications
PuTTY - a telnet/ssh client- Songbird - With an interface like itunes, but a whole host of useful add-ons, songbird is my new choice for when I want to listen to music. It supports syncing with ipods as well (but not iphones yet)Replaces Windows Media Player, itunes
VLC - VLC will play the media files that windows media player won't touch. Its also very lightweight, although the interface is not as smooth. - Replaces Windows Media Player
Keepass Password Safe - Got lots of passwords? Keepass will help you store them securely and also can generate pretty tricky passwords & help you sort them. - Replaces random text files or spreadsheets.
Firefox - This is the web browser of choice. Add extensions to enable firefox to do all sorts of things. Recently, I started using chrome, another open source browser started by google - Replaces Internet Explorer
PDFCreator - Make a pdf from printing any document - Replaces Adobe Acrobat
uTorrent - a very lightweight and solid BitTorrent client
InfraRecorder - Open source CD & DVD burning - Replaces Nero & Roxio
Notepad++ - Text editor with everything you need - Replaces notepad
Open Office - This is a full featured replacement for MS Office. There is little difference between the two except the price tag. - Replaces MS Office
Multiple IEs - As a web developer, I need to test my sites in multiple and outdated browsers. Multiple IEs lets me have internet explorer 6 & 7 installed simultaneously. (Note, I use IE for testing purposes only)
Twhirl - Twhirl is a great twitter client built on adobe air. It has support for friendfeed and other services as well.
mint.com - I now use mint.com, a free online web application to track my personal finances - Replaces Quicken or MS Money
Dropbox - Dropbox is a free web app with a cross platform desktop client for quickly sharing files between computers and other users. Instead of emailing files, using FTP or trying to network, dropbox has a streamlined interface that makes sharing or storing files online simple.
uTorrent - uTorrent is my torrent program of choice
Commercial Software I still use:
Adobe CS3 Suite - This is pretty key for a web developer. I use photoshop, illustrator & occasionally indesign.
Quickbooks - This is the industry standard for small business accounting. I track our expenses and account balances with Quickbooks. I use the online web application Freshbooks for accounts receivable (That was a referral link). I would love to be able to replace Quickbooks with an online application, and it seems like Freshbooks might move this direction.
Thats pretty much everything on my computer at the moment. I only use google chat through my web browser, and I guess I don't have any games.