Need to use MXF media (P2 DVCPRO/50/HD and AVC-I, IMX, XDCAM) natively in Final Cut Pro, or in Windows NLEs? Need to play FCP-captured or FCP-generated Quicktimes with HDV, DVCPRO50/HD, or XDCAM/HD/EX content on Windows machines, or on Macs without Final Cut Studio? Check out http://www.calibratedsoftware.com/welcome.html.
Importers and codecs available singly or in bundles, from $60 – $110 (with free, watermarked demo versions so you can see if they solve your problems before you spend your hard-earned). I haven’t tried ’em myself but thought I’d pass on the info, because if this is the sort of thing you need, you really need it.
(With a tip of the hat to Rich Young on the SF Cutters FCPUG mailing list for pointing these out!)