On 2 Nov 2005 11:29:35 -0800, wrote:

You should be aware that
dSLRs with Battery grips that use AA bateries, only get a few dozen
shots from a handfull of AA batteries in the grip, compared to 1000+
from the standard LiIon cell.

I believe that that is only true for the defective battery grips
manufactured by Canon. They announced earlier this year that these
would be repaired/replaced at no charge.