Hey all,
Here are some programs that run all/most of the time for me:

Must-have apps in the System tray?
My Systray

Must-have apps in the System tray?
Screenshot Captor - The one we all know and love


Must-have apps in the System tray?
Slickrun http://www.bayden.com/SlickRun/ SlickRun is a free floating command line utility for Windows. SlickRun gives you almost instant access to any program or website.

Must-have apps in the System tray?
Gizmo -
http://www.gizmoproject.com/Gizmo Project uses your internet connection (broadband or dial-up) to make calls to other computers. Works like Skype, but opensource friendly.

Must-have apps in the System tray?
Find and Run Robot (super happy version lol)

Must-have apps in the System tray?
Free Ram XP Pro -
http://www.yourwaresolutions.com/Freeware application to free and optimize your computer's RAM (Random Access Memory), resulting in an increase in system performance and productivity. Automatically configures itself for ease of use and also features advanced options and customizability.

Must-have apps in the System tray?
SpeedFan -
http://www.almico.com/speedfan.phpLike Motherboard Monitor, I like this a little more though.
SpeedFan is a freeware program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips.

Must-have apps in the System tray?
Dachshund Software -
http://www.dachshundsoftware.com/index.htmlA suite of Apps that optimize, accelerate and improve windows.

Must-have apps in the System tray?
Servant Salamander -
http://www.altap.cz/salam_en/index.htmlOh my, what can I say about this one

...better than any File Manager I have used, and I've tried alot! Deeper than first impressions give, fast and reliable; I can't be without this one for sure.

Must-have apps in the System tray?
Agnitum Outpost Firewall 3 -
http://www.agnitum.com/products/outpost/index.phpOne of the best firewalls IMO, haven't had any problems with this version so far, but I've heard of issues from others from this forum.

Must-have apps in the System tray?
KDX (server) -
http://www.haxial.com/products/kdx/Small, multi-platorm, BBS style chat, file transfer etc. "KDX is like a swiss army knife for internet and intranet communications."

Must-have apps in the System tray?
Peer Guardian -
http://phoenixlabs.org/pg2/IP Blocker for windows. Even if you don't use P2P, you'd be surprised what IP's are knocking at your door constantly. You need this (or something like it.)

Must-have apps in the System tray?
HLWin -
http://scifi.pages.at/iceman18/I play alot of Half Life, and this program allows me to play full screen, windowed...I can alt+tab and not leave my game.

Must-have apps in the System tray?
Avast! Antivirus -
http://www.avast.com/i_kat_207.php?lang=ENGThis antivirus rocks, plain and simple.

Must-have apps in the System tray?
CPU Idle Extreme -
http://www.cpuidle.de/Keeps your CPU rested. Check the site for info.
Well, that's about it. looking forward to other members Systray programs. Cheers!
- scruff