Many thanks for you help, received the V1 today so about to have a little test run. I'm hoping that Twixtor will be able to cope with people walking in the scenery as I imagine a lot of my shots will be just that.
Arthurr I use them both in different situations. Whenever I'm around water or very fast motion I use the 60 frame/.5 second mode because Twixtor has more to work with when creating new frames. I'd say just stay away from birds/flying bugs and low light situations. The regular 30fps works well 80% of the time. When I use twixtor, I drop my 1 second sequence of RAW files into a 3 second timeline. right click on the sequence -> frame blending -> pixel motion. Then I use the time remapping in AE to stretch the sequence out to 3 seconds, without actually moving the slider for time remapping (this gives Twixtor a blank slate to work on). Then I apply Twixtor, change the input frame rate to 30 and the speed to 33.33% (and turn on smart blend). I usually don't touch the other settings unless the exported clip doesn't look good. Hope this helps!