I have helped you a lot, so please don't take this the wrong way. I ran a server system with ONE GB of RAM. You have plenty power there to run AC. There is no doubt your network is set up incorrectly.
NexGen is ridiculously expensive. You talk about pros. Everyone talks about pros. You need an actual store that can set you up properly. I researched three places. This one was the best: www.softchoice.com. There are 145 miles from you.
