My plan is to do editors for all the data files and maybe the racial data files as well. Currently, I'm on vacation and having fun doing the code for this. When my vacation ends in a week and a half or so, I doubt I'll have a lot of time to work on this any more, so we'll see how much I get done by then.
Whatever I get done, I'll release along with full source code in case anyone feels like finishing up what I don't have time for.
I'm currently just about done with Facilities - I still have to finish up the reordering, adding and deleting items from the various lists, and saving the data back to the file. I also have the formula wizard to do, and I suspect that will take much of tomorrow.
At this point, I think I have a good idea of how to do most of the rest of the data files, so they should start going quicker. Except for Components, most of the rest of the data files aren't as complex. Components is what I'm planning on next - I'm guessing I'll get to those by sometime tomorrow. After that, I could probably do Events, but have no definite priorities yet.
The best part about this is that I'm having a blast and learning a new language (C#) as well

I suspect I'd be getting this done a little faster if I wasn't having to look up so much syntax, but even so, I'm finding C# to be one of the fastest development languages for this kind of task I've ever used. I'm pretty impressed with how easy this program has been to throw together so far.