Usability vs Security of password fields?

[eluser]Xeoncross[/eluser]
I have a register form where I ask for a password, then I ask them to confirm that password with another input. I was just wondering if I am tackling this wrong.

This will be on a family site where I don't care if the people behind the user can see the password when the user registers - it's more important to me that users don't messup the password entry and know FOR SURE what they typed. Is there any other reason not to just use a plain text field on the register form and then a regular password input on the login and everything else?