Okay, as i posted before. The 5850 + E5200 wont really work as good as the vga should do.
How about if i bought the Q9550, A good fan and possibly overclock it. And the 5770. How well will they perform together?
First of all i think a HD 5850 and a E5200 will work fine(you may need to push the CPU a bit)
Q9550 and HD 5770 will perform well together but in terms of gaming HD 5850/E5200 will give you better performance since HD 5850 performs better than HD 5770 too but if you haven't bought a Q9550 then don't do it since socket 775 is a dead socket now and its better to get an i5/i7 CPU.