Advice for a 'clients login area' plugin

[MattCarr]

Hi guys,

I have had a search around StudioPress and WordPress but cant seem to find any answers to this subject, I guess I must be searching for the wrong thing but here is what I am after...

What i am after is a 'clients login area' plugin that gives the website visitor a relatively secure login area that only they can see.

So if I have say 50 visitor/clients, with 50 different visitor/client details, when they login with their specific username and password they can only see their own details page.

An example of a normal website 'clients login area' can be seen here, what I am after is this in a Studiopress / Wordpress plugin enviroment.

Does anyone know of a plugin that works with Stuidopress themes that can do this?
I would prefer a free plugin of course but if you know of a good easy to use plugin that works with StudioPress I am also happy to pay.

I look forward to any advice, help or recomendations.
Many thanks

Matt