Well, it doesn't really have to be all that complicated, is the thing. Not a whole lot more than FS, at least. Just stay at the Command console and let automation do its thing. You'll lose a lot of the functionality of the Dreadnought (like the rear gun and an intelligent repair scheme... incidentially, anybody else think that the rate at which those ships get fixed up is ****in' insane? I don't care if you've got a few dozen engineering guys, I don't care if they're really really good...), but things'll mostly handle themselves and you can just point and shoot. Doesn't apply to all missions, but most of the campaign that's true.
That's one of the things I really appreciated about I-War. Yeah, there's a lot of stuff added on there, but it's all really frickin' handy stuff once you get used to it, and then you really start missing it in other games...