Do you honestly think I would bother starting a thread if the answer were already here ? I've also googled for several days. Fact remains. The bass in In Your Arms by Andy Moor is very hard to replicate using VST.
You might be right, Trilian comes quite close. I know Zebra can pull it off 100%, but that synth is really advanced and would take ages for me to master...
You can definitely use a VST to get that sound. If you're good at layering, you can get pretty much any sound. Not saying it was easy, but I think it depends less on what you use and more on the experience of the producer.
With that said, I think it's a dam good track.