That means a lot, honestly. I will be running it again on Saturday at 5:00 if you want interested in going! Though not sure if I am going to be filming it or not lol.
Only the top skiing photo and the Bee and Puppycat cosplayer (the one with the plushy) are the only strobbed shots there. I will have to post more of my strobbed, but to be completely honest, flash has been the single most difficult area of photography for me to understand. First off, I hardly ever shoot with the flash on camera. If I do, I am certainly bouncing it off of a ceiling or a wall. I am not going to make any assumptions on how much you know about photography, so sorry if some of this is a little basic. The softness of your light is directly proportional to the size of the light source in relation to the subject. Essentially, if I want really soft flattering light, I need to figure out how can I make the light bigger. Bouncing off a wall (assuming the wall isn't colored) can help a ton. The down side of this is that it uses a ton of power, especially if the walls or ceiling are higher or far away. You can use a bulbous diffuser right on the flash (like the Gary Fong Lightsphere). This will give you a marginal increase in softness (and still sometimes a bit of an unflattering look if the light is on camera).
The absolute best thing you can do is get your light off of camera and with a modifier. Shoot through umbrellas are probably the cheapest way of getting this done, but I really love the look of a soft box (I use my 43" apollo orb soft box as my main modifier). When you take a photo with a flash right on top of the camera, you are lighting someone, but you are taking away so many of those shadows this give depth and contrast. Shooting off camera flash can add really add to the depth of an image. I have been looking for a great solution for what to buy in terms of off camera flashes for a while and am on my to my third set - 3 yonguo YN560 IV's with a YN560 TX transmitter, all for around $300 with great remote manual controls, these things seems great so far.
All of that said, I shoot more often with natural light. Most of the time I am walking around a con I have my 35mm f/1.4 lens on with the aperture set to max (1.4), the shutter speed between 1/60 and 1/200, and then I adjust the ISO to whatever gets me in that range. I don't know what kind of camera or lenses you are shooting, that would make it a lot easier to recommend things. Be warned though - the lights in the dealers hall at Acen flicker at about 1/200th so never let your camera get above that speed when you are in there.
Since I Acen is coming up in a week (!!!), here's a shot from last year using a super ghetto rigged flash setup.