All of these images were converted from raw to jpg and resized down to 6x4 and 300 dpi, thats it, no crop, no enhancement of any kind. I know i can be more thorough and get shots in jpg at the same iso same place but to tell you the truth the light was changing rapidly at the point i took these.
One thing i'll say about noise. You can get awful noise from 400 iso from any camera if its underexposed the key to keeping noise at bay is good exposures for you who are new to this or just havent figured that out.
I did these shots in a rush so sorry about all that. I did shoot today around the house and i will say i have not prob shooting 25,600iso, the detail is retained and for weddings if i need it i wont feel guilty using it.
Also This was accomplished with CS5 with the beta update. LR doesn't recognize the raw files yet.