Setting up different "profiles" - please help :-)

Setting up different "profiles" - please help :-)

I have just been introduced to the world of CRM's - having never heard of them before yesterday!

So far I am very impressed and although I am (currently) using the free version, I may well upgrade to the professional version to gain access to the invoices module - although this is not essential at the moment (because I'm just starting out). However... I do want to outsource "lead generation" and I think I have discovered the only way to give anyone else access, is as a full "administrator" - is this correct?

 

The problem is of course that I don't really want them to be able to see all other aspects of this business - only the "inputting of the leads bits".

 

For me to be able to restrict their access only to this area, do I have to upgrade and if so, do I have to pay for two users ($24 per month), even though one of them would only be inputting leads?