Some nubus cards will not work with recent system software, and some (say, the Rocket accelerators) will not work with a ppc processor. That's all I meant.

I have a 2300c with CF, and a dock with Radius Thunder video and ethernet cards. Similar setup. I also re-celled the battery. I really like the machine and whole setup, but I think my favourite is the 270c. It's just a shame that it's so hard (or else expensive) to get a replacement for the old drive.