A search on Google took me to a couple of interesting possibilities, but most of the links were out of date, there was one which hinted at a gadget (supplied by Google unsurprisingly) but that didn't lead anywhere, and others who had tried it had similar problems.
- Introduction to the Google Ajax Feed API
- Detailed look at the underlying functions
- General purpose script for displaying feeds
This proved to be exactly what I was looking for, and being a code solution rather than a third party service, there's scope to customise as required.