I have recently invested in MS Dynamics CRM 2013 for my business and as part of the process of setting CRM up and using it to its full potential I need to migrate circa 4k of email across from Outlook for Mac over to Office 365 then link these to the CRM

I have a couple of questions

Which is the most suitable 365 Office package I should subscribe too

Having determined the Office package, what is the most effective way of migrating my email over.

From what I've read, contact can be migrated using a .csv file? 

Help, my business is suffering

Many thanks