Hi Ted,
Thanks for your replay.
We have also placed Nimble as a number one. So far EQL is on second and EMC on third place. Read a lot about Nimble on the net, very few negative responses. Many people are positive about the box ( btw, we are also looking at cs220).
Unless Dell or EMC can beat the pricing and performance on Nimble we will go for it. The product seems to be great, and after reading all the reviews, to good to be true 
Will report back on what we choose