zing_deleted

Thats not a major upgrade its a replacement motherboard or and upgraded cpu. You say you want an external drive? mistake you should have multiple internal drives if you need one to pull regularly buy a caddy

Whats the point of making a sideways step its a waste of money just buy the case and replace your chipset fan.
To complete a major upgrade imo you need to be looking at a total rebuild the only thing I would use is the gfx and existing hard/optical drives.Id save enough for a dual core cpu.If it is just cooling thats wrong with your mobo you can keep this and your ram and bung a X2 cuz these are cheap cheap now.
However I would recommend making do for now and buying a C2D when you can afford a new mobo and ram this then would be a major upgrade lol