I will have 4gb ram and a terrabyte hd. I will have a high end graphics card and I will watch youtube and post images and surf the net at speeds which most men only dream of.
wudidiz, yep, you'd DEFINITELY need a better power supply, that supply seems to be an older supply designed for the Pentium 4, and doesn't have any SATA power cables or PCI-E power plugs for new graphics cards such as any card that you were considering putting in there.
You definitely want a SATA HD in your PC.
I'd look into the following power supply and see how much they'd charge to put it in..