EZ,

for the love of God! Please do not upgrade your G5 to Leopard! Keep tiger. If you can, get an older x1900 for G5. This and the SSD will give you the ability to run as many as 10 layers of DV NTSC without issue. It will also give you the ability to run content on both outputs that actually stays in sync or give you the abilty to run a single TripleHead2Go on a single output for three screens.