Hi guys, wasn't sure where was the best place to report a bug, SAP Development Tools for Eclipse Installation: FAQ and Known Issues didn't seem right as I didn't want to spam all the people who'd replied to that thread.
A very very very minor one! 
When creating a destination in the Eclipse UI for a local machine if you add the Additional property "TrustAll" before you add the URL of the destination, (an https://somesite.com ) you are prompted that destination must be an HTTPS. So then remove the additional property, and it realises that the destination _WAS_ HTTPS and then prompts for the addition of the TrustAll parameter.
After that it seems to work
Cheers,
Chris