>We are preparing a significant upgrade for our main product and are looking for samples of modern looking reports that are easily implemented with VFP.
>

If you are looking to refresh overall design of reports, then you can find abundance of nice report design samples on the internet.
Personally I tend to keep it simple, just touch of color here and there but mostly black on white, bigger bold font (whenever possible)
for easy reading. I use Tahoma or Arial for 'workhorse' reports, occasionally Century Gothic for more fancy looking stuff.

Now in terms of report layout features, there is no longer anything that cannot be implemented in pure VFP9.

Personally I use VFP9 report designer + RS in combination with XFRX. (All VFP)
RS covers for all those 'irregular' report requests (Be that subreports, drilldowns, dynamic report content, complex electronic paper production, filling preprinted forms, etc),
whereas XFRX is plugged in for all report conversion needs.
Exception is excel which I code manually via excel class automation. Surprisingly or not, these excel reports most popular amongst the users.

If you are looking for more thorough reporting overhaul, then you should consider wrapping reports inside some solid class pattern.
I use extensively session objects which encapsulate reporting tasks into its own data space (session) . Any report (or group of them!) should be able to be called eighter interactively by user, or programmatically without any user interaction. I can send you one sample of such classes / reports that can be run interactively from anywhere inside desktop application, or can be used to serve other applications or processes (like producing pdf/html for some webserver or NET application, etc. )

Little planning ahead in terms of architecture can pay great dividends later :)
HTH
Sergio