I doubt anyone is still wondering about this, but 12 years after posting this query, I finally found out who this is. Believe it or not, I posted the 4th track on youtube and got a copyright claim from the artists record company which revealed the answer. The band is called 'Korkkijalka' and is, in fact, mainly Finnish. The lead singer is Irish, though, and wrote several original songs for the band. He is called Harry Bent and is from Dublin. These tracks are from their album 'Korkleg'.

Just thought I'd let you know :)

Andy