Hi Rich. Here's a few to begin with. Some of these don't have FC members on them, Little Johnny England for example, but are close friends with Fairport, or damn good folk-rock bands.
Rise Up Like the Sun - The Albion Band
Lark Rise to Candleford - The Albion Band
10 Years On - Little Johnny England
Smiddyburn - Dave Swarbrick
Flittin' - Dave Swarbrick
This is cheating a bit, but is a really cheap way of buying nearly all of Steeleye Span's back catalogue.
The Lark in the Morning - first three Steeleye albums
A Parcel of Steeleye Span - next 5
Another Parcel of Steeleye Span - the next 5 Edit: Whoops, just read your other post. Ignore this bit!Anything by Feast of Fiddles is worth listening to.
All Rogues and Villians - the Duncan McFarlane Band
In the Service of a King - Something Nasty in the Woodshed
That should keep you going for a bit!