Click on the overview tab at the top of this forum. You will find a number of FAQ articles, that give you a lot of information.
Building yourself, with the help of your son, is of course significantly less expensive than from a builder.
Instead of a P67 mobo, consider a Z68 mobo, because of the SRT functionality. Leave out the Matrox and use it only for its designed purpose, as a doorstop. Case and power supply are covered in some of the articles mentioned above. The 580 may be a bit much, unless you intend to overclock a lot, otherwise the 570 is enough and saves some $$. Taiyo Yuden is another good brand of disks.
In general go for a big tower case. easy to install, good airflow and cable management and lots of expansion room. My favorite is Lian Li PC-A77.
This is not intended as a brush-off, but a lot of your questions are covered here in multiple threads and in light of your willingness to learn, I suggest you spend some time reading here.
The best advice I can give at this point would be to listen to Harm and Bill. Lose the Matrox.
Thanks for the responses. Really appreciated! I have spent some time before trying to understand the many situations that could be involved in building a new system, but sometimes I get lost because of my low acknowledge of computers. Most of the time it is very easy just to follow recommendations from people that really know what they do as a daily routine.
Anyway...this might help some people: I installed the LiteOn BR drive on my old quad core system and burned DVD+DL discs with no issue using a non Verbatin discs.
On the other side...could you please explain what do you mean with :"Leave out the Matrox and use it only for its designed purpose, as a doorstop....,loose or drop the Matrox"?
Do you mean to think on something different to capture/process the video other than Matrox?
Would you recommend another alternative? The only two products I have worked have been Matrox RTX2 and (years ago) Canopus Storm2.
Then Harm, when you say Z68, you are refering to he Asus motherboard P8Z68 DELUXE/GEN3?
Again, thanks for any comments. ANY IDEAS will be APPRECIATED!!
Regarding the Matrox, what are you capturing that you need the Matrox for? Is it analog video? Matrox drivers always seem to be a problem with Premiere especially with every new version of Premiere and on our Premiere Pro Bench Mark (PPBM5) they have a tendency to slow Premiere down.
Bill: I am basically recording from my Sony NX5U, coping the AVCHD files, convert them into avi HD files and edit them in Premiere. Not very often I may need to capture video from some customers tape to edit their video. Talking on my own duties I would say I may not need to capture video anymore, but I always had the impression that my system needs to have some card to easily manage the transcoding accelerattion / processing of the video (like Matrox does). So, what I can see now is that continuing using the Matrox hardware (and any other one) is not necessary anymore. I could see this happening since the newer computer techology and hardware have make computers so much faster now. I am right or wrong??
Thanks for your time to help me understand this!