Website having Intermittent Connectivity Issues and Sluggish Performance

The Epilogue.  My request for help is at the break.

Hello.  Since yesterday, I've been trying to buy a single-incident support contract from Adobe.  However, I've been unsuccessful.  Unless I'm not seeing something correctly on the website, it seem you can't buy CF support online.

First, I called yesterday.  I waited for an extremely long period of time only to be told I'm in the wrong department.  Then I was transferred to sales, who then told me I need to speak with Enterprise support.  I called Enterprise support and was told I needed a support contract.  Fine.  I asked if I could get it, they then transferred me back to the general support line.  Dead end.

Then I call again today.  The wait wasn't as long.  Again, I was bounced around from department to department.  Apparently saying "I need to purchase a support contract for Cold Fusion" means that somehow I want to be transferred to sales to buy CF.  I was then sent back to Enterprise support to be told that the guy was going to send an email to the "Enterprise Support" who will give me a call back in four hours. Huh?  Do I really want these people working on my server?

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Hello.  I'm the Network Administrator at my place of work.  I'm not the CF guy.  The CF administrator is a contractual/ third party person.  He also built/ designed our website.  I may not be able to answer questions with great detail, but I'll certainly try.  Our web server was put into production on 4/2011.  I did the initial setup and installation of Windows, IIS, and Endpoint.  The server is Windows 2008 R2, an AMD 2.4GHz Quad proccessor, 4GB of RAM.  It's running CF9 and IIS7.  Aside from Symantec Endpoint, CF is the only other installed program.

The site ran fine for a while.  At the end of May, we started experiencing performance issues.  The CPU utilization would become maxed out.  The website would load slowly.  We do mail sends with our server.  The server was sending out emails at a snails pace.  Now, our website will occasionally become unresponsive or just unavailable.  There's not anything that proceeds this when it happens.  Sometimes it'll happen at 1AM in the morning, when obviously no one would be using our site.  On Monday, I brought this up to our CF administrator who suggested contacting Adobe.  He stated that he has other clients that run similar setups without issues.

Could someone assist me?  Are there any logs anyone would like to see?