Yeah, I've seen G25Manage (I think?) mentioned in a couple places, and supposedly it works well for the G27. On the other hand, I've read that some of the more recent kernel updates did wonders for FFB and peripherals, but that I might still have to tinker with that tool to separate the pedal axes and recognize all the gears on the shifter ... so I dunno. The little bit of info I've found on it is pretty particular to certain games.
I'll likely just end up partitioning and dual booting, I just don't feel like going through the hassle, lol. With a new wheel and video card on the way ... Windows, unfortunately, is the place to get the most out of'em anyways.