Hello I have a business with many high end Pelco cameras.( I can find out more product info if needed) I need a DVR with 16 channels. That has PTZ functions. I currently have a Eclipse Nubix 16 DLX D1 dvr and looking to upgrade. I believe I paid around $2,000 for it. So a budget for a new one can be high. I just want the best that will provide me with the best resolution. I have the system viewing through a 40 inch HD tv at the moment. I feel that certain cameras aren't providing me with the detail I want. So my question is, what is the best 16 channel DVR available for around $2500? Quality matters to me.