I originally bought Cryoburn as an ebook ARC (it was out a couple months before the hardback), but now I can see I'm going to have to go back and get the hardback so I can get all those others as ebooks.
I have the rest of the series in paperback.
Her Chalion books (fantasy) are also good. I wasn't a fan of the Sharing Knife series (more of a slow-paced romance), but she's done with those.
I'll be interested to see what's next up. I heard a rumor she is doing another Vorkosigan book with Ivan as the star.