I'm currently building an application that is presenting tabular (fetched from a webservice) data and have squirted it into a datagrid - seemed the most obvious way to present it on screen.

I've now come across a few limitations in the datagrid and wonder how I might move forward. As a relative newcomer to flex development I'm a little lost.

A few things I am wanting to do.

1. The data is logically split into groups and I would like to be able to have subheadings in the grid whenever I move to a new group.
2. I would like to be able to highligh individual cells based on their content relative to other values in the row - ie highlight the cell with the highest value in the row.

Is this possible with the standard datagrid?

I'm actually using the try-before-you-buy version of flex builder at the moment but I have ordered Flex Builder 3 Pro - which is on its way to me. I understand there is an 'advanced datagrid' control in this version - perhaps that will support some of what I wish to do?

Alternatively - is there another way of building custom tabular data?