Oooh yes, I remember having that Heather Ale in Scotland! Man, that was an awesome beer, a bit sweet and quite, well, thick, hard to describe, when I had it from the keg in a pub. Highly recommended! I also liked the Hobgoblin Ale, but didn't have a lot of it. My favourite beer is Krounenberg, which is a beer from Belgium I think, well, I usually have it in England, they sell it in nearly every pub. I also like the occasional Newcastle Brown Ale.
Well, here in Germany we do have an awful variety of beers, I personally enjoy honey beers like Odin Trunk. But you can easily create your own mead beer, just buy a bottle of mead and some dark beer and mix according to taste (approx 1/3 mead or less). This is what I enjoy drinking at medieval markets.
We also have quite a range of wheat beers here, I'm not an expert, but we do have a nice German company called after the infamous German pirate Störtebeker. They have a range of nice beers, among them many wheat beers, that are good.
I can strongly recommend Rockbier, check out their webpage!
www.rockbier.com Great attitude, beer tastes wonderful!
Apart from those beers I like Carlsberg, Heineken and other lagers, here in northern Germany especially Astra, Flensburger, Jever, Dithmarscher or Holsten, but to be honest, there are so many good and nevertheless cheap beers available here! There's a beer simply called "5,0 Original" which costs 0,39 Euro (like half a dollar) per half litre can and that is really tasty!