One user login over multiple blogs, how?

I am working on a new site and i am using WP, for the site i have many different sections (read WP blogs) now what i would like to do is use the same user info (like name and email) across all the blogs in my network.

Anyone any idea how to do that? is WP-MU capable of that and if so how?

I know that there is a database hack to use the table with the user info when you install all the blogs in one database using the prefix, i just can't seem to find it. and i have been googling for 3 hours now

I hope it makes a bit sense

Thanks.

Never mind
Figured it out myself

Edit-Nevermind your question is not the same as mine

Maybee instead of sayin nevermind i figured it out you can share how you did it for anyone else that needs the info.