reliable stock tick data

["Vitas Rasys" <vrasys@xxxxxxx>]

Can anyone please recommend reliable sources of intraday stock tick data,
in whatever format, that can be downloaded at the eod?  The Omega refresh
data appears to lack  up to 20% of reported daily volume.

Also, sources of  intraday stock tick data in text form summarizing net up
tick volume and downtick volume for NYSE or S&P 500 stocks would be 
appreciated.

Vitas