You also need to keep in mind your power supply. Some don't have PCI graphics card power connectors. They can be either 6 or 8 pin. Some cards require one or two of a specific size. Check your supply and let that limit your card choice or pick the card and then get a supply that works with it (don't forget to watch your wattage too). Jay

I'm not sure what Mark specifically is suggesting but in general his comments seem to be an improvement over what you posted. One interpretation of what he said is that taking a simpler strategy, e.g., a single server, and using standard tools to account for resilience, redundancy etc. On the other hand your post tends to sound like a peer to peer system. Perhaps you should find and study some technical information about P2P designs and issues. You may find some of the information/issues match your situation and gain some insight on the architecture and it's associated benefits and drawbacks. led mike

even worse, it's a poor man's floppy dongle! Best regards, Steven A. Lowe CEO, Innovator LLC www.nov8r.com

Array.CopyTo is exactly what I was looking for. :)