creating a secure login area

Hi guys

One of my clients is a small marketing firm who i did the site for over a year ago.

They have just asked me to create a login area for their clients and just need a bit of steerage in terms of which tools and which order I should be doing this in (first time and all that!)

Basically the login area is for their clients to be able to login and print of activity sheets for that month. *They will not have any requirement to be able to upload anything.

My client wants to be able to add activities and the associated cost as and when they need to so that at the end of the month they can print all the activity off (as can their clients) and they can then start again from scratch - there is no requirement to keep historical data.

In terms of what I need, clearly the front end has alredy been done and uses PCMS.

I am assuming that the security of the login aspect needs to be dealt with by security assist

But its the actual area for each of the clients that I am a bit stymied on.

Do I just create PCMS pages for each of the client and secure them?
What would be a more efficient way, with the tools in the WA arsenal, than using a table on the page for my client to be able to add activities by line ?

Sorry if I am not making a huge amount of sense but am not sure what sorts of things I need to ask you to make it more focussed.

TIA

Jamie