Thanks for the info about synths. I've been doing a fair bit of research and need to spend time learning Sonar now.
Omnisphere2 is out of the question at my skill level (and financially) at the moment.
Yes, I saw the u-he synths in a few top best synth videos on YouTube.
Some Nexus2 sounds are my cup of tea, but that's pretty expensive too at this stage.
I'm very interested in PolyM when that is released.
I'd be tempted to enquire more about Wibbles's unregistered CM version of Rapture, but I'm still trying to setup my controller keyboard properly, so I should concentrate on the basics, watch tutorials, continue learning, and ask a few noob questions for now.
Thanks for your opinions, advice and hints. Much appreciated.