Conditional buddypress links in menu nav (login/register etc..)


Sorry about the confusing title - wasn't sure how best to sumarise.

I want to remove the buddypress bar at the top and in its place use the wordpress menu.

So I'd like to show links to the profile, group etc.. but how do I do this dynamically so if I'm not admin it doesn't link to :

Also, Is there a way to have it so login and register is displayed if no one is logged in. And have these change when the user logs in...

In a similar vein, is it possible to have the menu links change if a user belongs to a specific memberhip/subscriber level.

Thanks all!