Intel Pentium D 2.8 Ghz DualCore (*)
Corshair 4GB 800MHz (DDR2)
Abit Fatal1ty Motherboard i-f90hd
BFG 250 GTS 512MB
Coolermaster GX 650Watt PSU
Coolermaster CM690
As you can see the first 3 parts are outdated (especially the CPU) and I really want to upgrade. I really want an i7, but it's a bit overkill right now, so I thought I would go with an i5 until I saw the price for the i5 Quadcore, so I started looking at AMD Quad Cores, but I did my research first and asked a few people and I got different opinions on which one to get. Then I thought that I should upgrade my RAM while I'm at it, and especially after I found out that all "i" series motherboards are all DDR3 and not DDR2.
So I'm upgrading the motherboard, CPU, and RAM, and I don't know which one to go with. I have about 300$ total right now, but I am selling some stuff on Craigslist to make more money. To get the i5 with the Motherboard and RAM, it'll cost a minimum of 400$, and if I went with the AMD Quadcore it would cost a minimum of 300$ and I don't know what to go with. I don't have a job which makes this decision 10x harder because I want to spend my money wisely.
So can you guys help me out maybe? Is the i5 really worth an extra 100$, or should I save 100$ by getting the AMD Quadcore. Just keep in mind this computer is used for school work and gaming. Not much video editing but I may get into that someday.