Chat System Similar to Livezilla

I need someone that's capable of creating an Chat System, similar to Live Zilla, it can be all web integrated, no need for desktop install... We are looking for a easy and economic solution for this. What the system must have: - 5 Star Rating - Choose what channel to acess, billing, support, technical - Chat transcripts must be saved - Show client IP - Show contact page when no support online - Waiting list