This is in regards to the post suggesting that the DeltaDiO does 24/96 under win2k /WinXP. WHile the Delta series cards are true 24/96, this functionality is generally unavaliable under 2k/XP except for specific programs.
From the M-Audio website:
Windows 2000 WDM Candidate Drivers
For Delta Series-Delta 1010, Delta 66, Delta 44, Delta DiO, and Audiophile 2496. You will be limited to 16 bit stereo input or output with non ASIO based applications.
getting a good 24/96 card that works well under the WDM model is proving to be pretty difficult :-(
For the money, the audigy is still likely the way to go.