Hoegaarden on tap is excellent also, the lemony flavour is nice and refreshing on a hot summers day (its a bit pricy down the pub though). Stella Artois on tap can be excellent on a hot day also but depends on the Pub. When you refer to Newcastle is that Newcastle Brown Ale from Newcastle in England. (There are some Austrailian beers called Newcastle as well I believe) Again another fine beer - smooth golden and mellow. Belgium also brews some of the worlds finest beer.
Have you also tried Belgium brewed Leffe Blonde (thicker sweeter beer)and Duvel(one of the best)?
Also if you can get some Orkney Dark Island thats nice too.
You should have a look at this webpage : some of the names for the British beers are hilarious
http://beergeek.stores.yahoo.net/englishale.html