Customer Service/Tech Support Issue

I purchased a new XPS 630 in August 2008 from Dell and that system had multiple issues with the B lue T ooth and the system freezing up. Dell was kind enough to send me an XPS 730 (an upgraded model) due to all the issues that I had before I bought the system and after the purchase. When I went to set up the XPS 730 the system blue screened on me once I went into W indows. I went ahead and reformatted the hard drive but the system would not turn on the B lue T ooth and I was having issues with the sound. I called Dell the very next day to tell them what was going on and a Customer Service Representative ("CSR") told me that he was going to take care of me. He said that he would be sending me out a new system. About a week went by without any phone calls or emails from Dell about what was going on. I finally called Dell back and I was told that the order was going through but they were having problems with a part number that was on the order. This was on Monday and I waited a couple of days and still nothing. On Wednesday I finally got a call from the original CSR and he told me he was trying to get me a very high end system and that I needed to be patient. Thursday came and went with no order going through. On Friday I was in contact with the CSR along with his manager. They told me that they were not able to get me the high end system approved and they sent me a quote of what they were going to send me. It was another XPS 730 but it had a video card that was about $250 less then the one I originally purchased. This was not acceptable because I bought the machine to play games on. The manager then threaten to cancel the reorder for the new system because I would not take it with a lower end graphic card. He told me that I wasn't working with Dell enough and that he was going to set up a return for the system. We went back and forth about what he could do and he told me to take the video card out of the originally XPS 630 and put it in the new system when it arrived. The new XPS 730 arrived and everything has been working great until I wanted to hook my camcorder up to the 6 pin fire wire connection in the front. The front fire wire port is bent and the 6 pin cable will not stay in the port. I tried it in the back fire wire ports and they work fine. I got online to chat with Dell and they said that I needed a new hard drive, front i/o panel and mother board. I didn't understand why I would need a new motherboard when the connection on the front is just a board that can be removed and replaced. Tech support then said that they would just send me the i/o connection. I received the dispatch the next day and it was the wrong part. They sent me a front bezel to an Inspiron desktop. I called tech support again and they apologized and sent me out another part. That part was wrong too . Since all of this has happened Dell has sent out a total of 4 dispatches and none of the parts were correct . Their " So Called " f irst c lass XPS tech support is not so f irst class after all. After about 20 phone calls between tech support and customer care Dell is just going to send me a fire wire hub (an external device) . Dell has promised me a concession of $200 to use on their web store due to all of the issues surrounding this XPS system, which is nice. When I ordered the original system, I had purchased an additional three year extended warranty which I have sense cancelled due to Dell not being able to service my needs and provide correct parts.