ERP Systems - Any Recommendations or Advice?

Hello All, 

We are a small sauce producer located in Suffolk, UK. We are a small site with about 40 employees and all operations are carried out at the one site. We are looking into software options to mainly control Planning, Traceability and stock control. 

Any software we purchase would need good security and individual logon for each user. 

I was wondering if any of you have any advice to help us get started or if there are systems or software that we should steer clear from? 

We are also interested in hearing from small companies using SAP, we never considered this before as we assumed it would be to much money however we are hearing that it might not be so bad for a small company. 

Have you looked at Sanderson? My recollection is that the system is expandable.