Yeah, it's one of my favourite bands actually! Check out the album Stronghold, it's their best I think. But whatever you do, do NOT listen to their first album, Lugburz..it's horrible
unfortunately their official website has been down for a very long time...I know they're working on a new album but there's not a lot info about it. check out their info-site at
http://www.napalmrecords.com/promo/summoningp.html if interested...