I expect that there'll be plenty to keep you occupied when Poser 6 arrives... but my advice would be that as you're becoming familiar with Poser runtime libraries, now would be a good time to keep an eye to the future. I'm also awaiting the boxed P6, but (hopefully) installation should not be much of a problem as I keep all my various runtime libraries in a self-contained separate partition, and I will just need to point Poser 6 to their locations. It's taken me ages to (begin to) organise these runtimes 'precisely' as I wanted, and only now am I beginning to realise the goal I had been attempting. As the sheer volume of Poser content continues to increase so dramatically, I personally find it 'essential' to keep some structure and organisation. Not only does Poser seem to load faster, but (for me) it's become so much easier to browse and locate items in this sea of many gigabytes. Separate self-contained runtime libraries (I use about twenty) also make easy (DVD) backups possible. Initially, it will indeed be a simply task for you to point P6 to your existing P4 runtime. However, eventually you may find that you also develop your own particular style of organisation, and might wish to disassemble your inherited P4 runtime into more manageable optimal constituent runtime libraries of choice. WARNING! This isn't an easy task, and the difficulty will constantly be getting greater as your (single) runtime continues to grow. My own peculiar solution to this problem was to use (yet another) separate partition which I labelled "What a Mess" - for obvious reasons! Only very gradually have I managed to re-locate the bulk of the content of the runtime libraries here, to a more organised structure where all my characters (etc) have their own runtime libraries. I've been at it for about a year now, and I still haven't finished! But I'm glad I started :)