Welcome to Coffee Snobs Danniboy.
Have a look at the Bezzera Domus Galatea, excellent value at $2975, excellent pedigree, very reliable and easy to get good results from, many satisfied users, I've owned one for 10 years, still performing as new.
As far as grinders are concerned, the Niche Zero is flavour of the month among users on this forum, if I were in the market for a new grinder it would certainly be on my short list, $1300.
Jetblack are good people to deal with and offer excellent backup service and advice, located in Sydney.
Cant comment on the other machines you mention, however the ECM seems to have a good reputation.
I'm sure others will offer advice.
Good luck, stay in touch.