Some of you might not see a need for this, but hopefully some of you may.
I think it'd be excellent to see a camera based mod for replay recordings in this game, many other PC games(particularly shooters) have mods that do this, such as UT's Rypelcam, and Quakes Q3MME. People who have worked with setting up camera paths in a 3D application may already know how this works. Anyway I dont know if this could be achieved or not, but I thought it'd be worth mentioning, and would be an excellent tool to develop some fantastic cinematic footage.
The second request I had in mind was some sort of a screen capturing utility, unlike Fraps this would work somewhat like a rendering device that you see in many 3D applications out there, it'd capture a screenshot each frame which would ultimately give you of course the smoothest footage regardless of how many objects, and conflicts are on the screen. Perhaps Sins already has this, I dont really know, but many games like Crysis, Quake, and UT, have a similar tool thats triggerd through a number of console commands that'll capture a screen shot each frame.
I dont know if either of these are possible to do within Sins, but it'd be excellent to see, and would be put to good use I'm sure if it were done.