There are lots of types of meads. I think straight mead with just honey and water is usually called traditional or show mead. I got a few different meads while in the UK. Lindisfarne Mead is like a sauternes wine. Moniack Mead is lovely, really tastes like honey and is great with ice. I have another but haven't opened that yet. I don't think the Bunratty stuff is great.
There seems to be a huge variety of tastes in mead. I've heard lots of good things about melomels. It's a pity there aren't more available. Honey is a very expensive raw ingredient and mead needs to be aged for a long time. This is probably why you don't see it. I have heard there are many fine meads made in Poland so I'd love to go there and try them.
Metheglin - Mead made with herbs or spices
Melomel - Mead made with fruit
Pyment - Mead made with grape juice
Braggot - Mead made with malted grain
[url:1228ln2x]http://en.wikipedia.org/wiki/Mead[/url:1228ln2x]