A geekbench score of 30,000 means it outclasses most of the newer trashcan mac range. There is only a couple of macs in existence that are more powerful than that. I do think you will be impressed.
If it were me, I would get the 2010 mac pro you have mentioned. I wouldn't put a sata SSD drive in it though. Get a Samsung SM951 m.2 drive and an PCIe m.2 adaptor.
http://barefeats.com/hard200.html