What large global company cloud ERP software ranks highest with ease of use and implementation (not SAP)? Is there any large system that has a beginner set of modules that can scale-up hands-free from 0 to $1B sales in one year and then scale up again hands-free to $20B by year 3? Website can feed into accounting system batch posting at the end of each day.
Workday has been making quite a name for itself in this area. You should check them out: http://www.workday.com/. Also, have you consider Microsoft Dynamics or NetSuite?
Do you have inventory control, lot tracking, order fulfillment, picking/pack/shipment requirements? Many ERP's are not robust enough in this space and a Best of Breed Warehouse Management Solution (WMS) is better suited. If you have requirements for these capabilities and would like to look at a scalable Cloud/SaaS WMS solution let me know as I can see if Snapfulfil may be a fit for you.