User logins

I’m hoping someone can point me in the right drection, im looking for a plugin that will allow me to create seperate user accounts on my web site.

I want each user to be able to log in and see a specific page which only they (and myself obviously) can see.

I want to do this so that i can provide clients with login details so that they can come online and review there photo samples without being able to see anyone elses.

is there a plugin that i can use to do this, or is there some other way of doing it someone can point me to :S