I'm currently using a PPC Powerbook and do photographic stuff using Bibble. I'm getting a bit frustrated by how slow it runs when I'm trying to work with large numbers of D200 RAW files. So I've been thinking about upgrading. The powerbook is fine for everything else I do, so it occurred to me to consider the idea of building a nice cheap Linux system for photographic work, rather than spending a vast amount on one of the new Macs (although they are very tasty looking) So, what I'm basically asking is for recommendations on distro, spec and RAW workflow setups from those who use Linux for this purpose. I imagine I'll stick with Bibble, but I'd be interested in any other recommended approaches.