|"it is unable to read above 130gb"|
You can't read over 130GB because you have an old motherboard. Get a modern board & the sky's the limit.
"how much wattage do i need then"
It's not just about wattage, it's about quality & amperage. The PSU you picked out is low end garbage & only have 16A on the +12v rail. The quad CPU you selected will gobble up 8A leaving only 8A for the rest of the hardware. That's not enough & leaves absolutely no room for error or future upgrades.
"most important question is can I transfer my original hardware?"
Which hardware? New boards only have one IDE channel...that means only two IDE drives. In your case, one HDD & one optical drive. And of course, Windows will have to be reinstalled.
How did you overlook this deal on a quality name brand case w/650W PSU that ships for free?