I've no idea what happened, I was struggling to get all the Dmin fingers down together. Not really picked up the guitar since Friday bar strumming along to a couple of EAD tunes and fiddling with my Ukew, but today the Dmin is coming along nicely, the fingers are all arriving in the same place together, Am to Dm is above 50bpm now, couldn't quite hit 60. I reckon it'll drop in like that for you AcousticLounge.
Still occasionally, on any 1 minute chord change practice stop in the middle as I've completely forgotten what I'm doing and what's next! Can't even think of the chord name when that happens, let alone the position!
Tried Dmin to a few other chords, they seem OK in terms of transition, not done them to a 1 minute schedule properly yet, but it's not bad and I have good confidence I can get straight in at 45-50bpm. The only weird one is G-Dmin. Bearing in mind I first learned the G years ago with the 3rd fret on strings 1 and 2, rather than just on string 1, and anchoring the finger seems to go from curl to straight, and it's like a pop, ever seen those "slap" wristbands? Like that. Sure a little work-out will smoothen things up a bit.
Only thing that's annoying me about any chord change is where you strum fewer strings, e.g. E-A or E-d or even A-D (maj or min) is muting the unwanted strings to keep the chord with the fewer strings cleaner. Main thing at this stage I guess, is the notes needed are clean which they are most of the time.
Interestingly, I tried the 4/4 strumming to "make" the chord changes keep up, it works, and I can do almost any chord change pretty slick doing that, well most of the time! Doesn't help for trying to play Desire by U2. I decided to leave that song along for now

As a side note, I'm being given a nylon strung classical acoustic soon, el cheapo kind of thing, but I figured it's be nice to have it about, and playing on a variety of different guitars is never a bad thing right?

Thanks all, this forum is brilliant for support and advice. I think half the battle is knowing and being reminded you're not alone when it comes to a niggle or a struggle with this, that or the other.