Need finance assistance

We are implementing multi-company in E9, and need some help. Is there any one who is currently using or going to E9 multi-company, and created (will create) a consolidation company, created consolidation books, or does consolidation in the reporting tools (MS Financial...)? Would you be willing to discuss your choice of path with my controller? If you would not mind, please contact me off list.
As always, thank you so much for being willing to share your experiences and knowledge.
- leAnn