progress bars in one column

There are a couple options. Some third-party grids support controls within cells, however all of the ones I've tried we've had to pay for.

An alternative that I've used in similar situations where I knew I'd only be displaying a few items (i.e. < 100) was to build a custom user control for the line item containing labels and controls specific to the line such as the progress bar. Once you have the line item you can add instances of it to a Repeater control within the form.