ZBrushCentral

Is there much advantage in Running a Solid State Drive with ZB4r4

I am running a Mac that is 4 years old. 8core, DDR2 Ram (mac pro) and I could really do with speeding things up without purchasing a new beast if I can. I see that the new ZBrush can take advantage of an emptier or faster HD. I am wondering how a Solid State Drive would effect overall performance?

Thanks in advance.

Arran