Sorry, can't help you there. We just discussed the initial investment. Also, in the case of OneTick, you apparently have to pay extra for the query engine. I wonder whether MonetDB is a viable option as it's columnar based as well.
Currently, I am looking into FastBit as well which by its description would suit financial data very well. It should make its way into HDF5 within the next two years as well.
I wanted to do a trial on FastBit today, but didnt get to it. Might have a few (hopefully) useful results to report in the next couple days.