
3.4Ghz,3.4Ghz Intel Pentium 4 Processor
1.5 Gb of ram
Nvidia Geforce 6800
SoundMax Digital Audio Integrated

Now heres the thing I can't tell if I got a pci express or just plain old agp, When I go to device manager and go to system and go under system device category I only see pci express no agp, it says pci express root port 2660,2662.
Question 1: How do I tell if I have PCI Express?
Question 2: How do I tell what mother board I have?
Question 3: When should I buy vista and reformat my whole computer (Tons and tons of genuine problems just want to buy a new OS and format everything!)
Question 4: Whats a good Graphics card now but is much beter than mine.
Question 5: Wheres the cheapest good stick of 1gb ram I can buy?
Question 6: Is my processor dual core? (It doesn't say anywhere at all and I have never ever seen even when I am buying my computer dual core.)
Question 7: My computer gets very very very hot how can I cool it down better?
I AM TAKING MY PC TO A SHOP SO THEY CAN ADD ALL MY STUFF AND CLEAN MY COMPUTER AND EVERYTHING.
Thanks A Bunch its about time this computer gets a goooooood cleanin!