No need for the pie. It is actually better to have different opinions about the choice of hardware. As I have stated on many occasions, I am not a gamer so I don't always consider this aspect fully, when putting together systems.
However, in this instance I have looked at this aspect of the build and really do feel that the 5830 will be a poor choice. As I always do, when asked what I would suggest, I consider if it was my money what would I buy? It definitely wouldn't be the 5830. If the need to play games is that much more important and money isn't the real concern, then I would say go for the 5850 which overall would be a much better choice of GPU.
It is a fine balancing act of getting a PC to cover all the bases and the big concern I have, is the fact that video editing is an important factor with this build too. A hex core CPU, coupled with a lot of RAM will allow for much better editing, rendering and conversion speeds over the X4. The GPU in this case is less important and, in fact, if all you were going to do was video work, you could save a lot of money by just using the motherboard's on-board graphics, which would be more than adequate.
The 5550 is a compromise solution, it will handle most things thrown at it, from a gaming point of view and is much easier to upgrade at a later date over the other components. The money saved by going down this route would be better spent on the hex core or even on extra HDD's as video and audio files can take up a lot of space, if the hex core is too expensive.
