EAP-PEAP/MS-ChapV2 password storing options

Hi All, I'm sure this is a simple question, and I thought I'd pose it here in hopes of a quick response. We're trying to implement username/password authentication and so far are using EAP-PAP (with secureW2 client) because our passwords are stored in LDAP in a 1-way encrypted hash. We're hoping to get away from this secureW2 implementation and would like to use Windows built-in authentication, which seems to be EAP-PEAP with MS-ChapV2 authentication. As such, we're meeting with the LDAP folks to negotiate how to store passwords in LDAP...soo...my question is: In order to get EAP-PEAP/MS-ChapV2 to work with FreeRadius, what are my options for storing the password in LDAP? Does it have to be clear-text? Thanks Matt mda@unb.ca