'Scuse the late reply, been a little busy
I was after a pair of four-wire connectors or a four-wire and a two-wire.
In the end, I bought a bunch of connectors from Farnell --
- JST PA series -- PALR and PAP. The PALR is very nicely sized for finger detaching, but the PAP housing is tiny. Separating the two would require tools... Not an option. NEXT!
- AMP Single Row Micro Mate-n-Lok -- a little on the large side, but very easy to snap together and detach.
@Sprocket -- I get the impression that the Molex Micro-Fit connectors are Molex's version of the Micro Mate-n-Lok, the dimensions certainly look similar. I'll have to get a few to test (I have quite a few Micro Mate-n-Lok connectors knocking around, but no Micro-Fits). It's nice to know there's a potential second-source for those
@Nanofrog -- Thanks for those links. I wasn't aware Thomas&Betts were still around, I haven't seen their products in my suppliers' catalogues for some years. I'll have a look through the TE/AMP and Molex sites soon, I'm surprised those didn't appear on my Google search...
Thanks guys!