1- Is the upgraded build hardware completely compatible with each other?
2- Is the Core 2 Quad Q8300 is a good processor or should I select some other quad prcessor since it has 4MB Cache only, is it good for gaming?
3- My motherboard has Intel G33 Express Chipset while earlier I was considering Asus P5Q motherboard which is Intel P45 chipset. Whats the difference between these two and would the performance of my Pc suffer if I go with my selected motherboard? All in all what difference would there be?
4- Is the video card good enough to run all present games and also are there any problems with heavy ATI cards or they work perfectly as Nvidia's cards do? Any other suggestions for video card are requested.
5- Is the power supply enough for my upgraded build?
Please inform and with my best regards to you all.
Which PSU do you have? As PSU's are not all created equal. Another route to consider is to save on the processor, and OC the one you have and use the saved cash on say a 4870 x2 or something like that.