Along the same lines, I'll hope to be up on Lewis late July/Aug. Any Mudcatters in Lewis at all? Any sessions on the island around that time? The Hebridean Celtic Festival (10th anniv) Jul 13-16 looks promising. These may be of interest -

http://www.hebceltfest.com/contact/links/

http://www.hie.co.uk/calendar.htm

http://www.lanntair.com/Events/default.htm

http://www.smo.uhi.ac.uk/en/cursaichean/cg/index.php