I started with Vue 5 Esprit and slowly added the other modules to make it into Pro Studio. Then I finally made the jump to Infinite because I needed ecosystems. Since you can now get the old ecosystems as a module for Vue 6 Esprit, I would start there and see what else you need. The beautiful thing about e-on is that your investment is preserved. They give you very competitive upgrade prices so you can scale up gradually and not spend any more that if you had bought the whole thing at once.

~jr