Real uncompressed, useable codec - please help

Dear AJa users,

I'm quite new to the Aja world, and i'm trying to look for the right codec to use in our post production studio. I've done some tests, but none of the codecs i have seemed to be right for the job.
Here's what I'm looking for:

Uncompressed - really uncompressed. not something that looks like one. we do lots of compositing, color grading, effects and 3D. i cannot lose image details in the workflow.
Realtime playable - HD and SD, no need to render.
8 bit is usually enough for us - 10 bit would be a nice and useful option.

We get our footage from Digibeta and HD/HDSR in TGA or DPX sequences, (captured on different machines) RED footage and Canon H264 quicktime movies. I really don't mind converting all these sources into one format as long as the format works.

The machine I use is a 2.66 QuadCore MacPro connected to an Xserve SAN (so bandwidth can not be a problem), Kona 3 with 6.0.2 drivers, quicktime 7.6, latest FCS.

I got the best results from Apple Uncompressed 10bit, but it doesn't always play back realtime.
Coming from a DPS/Leitch Velocity background, where all of these requirements were natural features of the system it's really hard to imagine that this is not possible.

Please help with ideas. I'm slowly getting angry. (Clients get annoyed much faster)


thanks for your time

Andras Sarkadi