Virtual Chat

I am looking for someone that is familiar with and can build a v-chat application. You must have prior experience and be able to prove it. Because of the complexity of the job, you must be able to communicate with me via the phone. I am not including actual specs at this time, but I am hoping this Post will provide me with one good programmer for a potentially long term arrangement. I have been in the telephony business for many years, but our equipment is antiquated - we still use T-1's and Dialogic cards. But I'm looking for a VOIP application