DCS: the free stuff

You know, with all my talk about all the Digital Combat Simulator flight sim on here, I've rarely mentioned some of the better aspects of it, which is that there is a plethora of free content for it. The base game itself is free to play and includes the Su-25 Frogfoot and the trainer variant of the P-51D Mustang. I've also mentioned the fabulous A-4E Skyhawk mod here before but in addition to that, here's a list of other mods available with download links that don't require any paid component of the game to work:

A-29B Super Tucano - Not my favorite aircraft, but a great one to include in the game.
AH-6J Littlebird - I can see this one being extremely fun.
C-130 Hercules - I bet you don't see that too much on the multiplayer servers, but I like it.
MQ9 Predator B - Interesting to make a drone mod for a flight sim.
MB-339 - Such a cool and often neglected little jet trainer.
Alphajet - By far my favorite of the Euro jet trainers. 
T-45 Goshawk - Almost a must with all the naval aviation features in the game.
Su-24M - Now that is one heck of a project to develop this mod.
Tu-22M3 - Another cool and underappreciated jet that must have been a complex mod to make.
F-117A - Hey, that's pretty cool. Didnt' think someone would be able to make the wobblin' goblin.
Mig-23UB - Not the best jet out there, but an essential and interesting addition IMHO. 

There's also a slew of commercial, acrobatic, and other military support and civilian aircraft out there, too that can be found with even weak google-fu skills, but I figure if you're playing a combat flight sim, the combat aircraft are gonna be the ones that interest most people.