Awesome heads-up, Doug- I will start digging on that latest link you gave.
The online shop at braupartner looks like a good source for brewing ingredients. I will likely order my next malt and hops order from them. However, for other equipment, MoreBeer beats them price wise on many items, so I will likely stay with MoreBeer for hardware.
Your trip sounds like it'll be fun.
The wife and I were in Vienna in early January this year, and it was nice. We weren't there long, though, and therefore we weren't able to peruse a great number of brewpubs. The one we DID go to was decent, but not worth completely going out of your way for, so I won't bother digging up the name of the place.
I have not explored Budapest enough to be versed on it, and I have not yet been to Bratislava.
However, there is a place in Prague that I will faithfully recommend to all of my friends who visit there. Of course, there are a bunch of great pubs and bars there, and the pilsners must surely be the second best there in the world (I am assuming that they are best in Plzen on the border, where they were invented, but I did not stop there when driving through. Sad, I know), but as far as brewpubs were concerned I always recommend one. It is called, "U Fleku", and it is an old Czech brewery that used to be a malthouse before that. My wife discovered that gem while walking past it, and pointed it out to me (bless her), and we went in. Great atmosphere, with accordian music playing during the day, and trays of beers and schnapps being passed out to the multiple-family, fest-style tables in the dining halls. The food is good, but the typical Czech meat and dumpling fare that you will find all over Prague. It is an experience you don't want to miss, and won't regret, though. On the walls are pictures of the years of old brewing history and equipment there, yadda, yadda. It is really cool. Don't forget to take an "U Fleku" growler of their dunkel bier with you, either. Okay- I'll stop ranting about it. It's a great place. You may have to ask your hotel desk agent about where it is, though, as it is tucked down a side street. Prague is one of my "top 5" cities in Europe, though, and even though it is absolutely gorgeous, "U Fleku" helps its ranking out quite a bit.
Sorry- I can't help but get a little exuberant about that place.
Again, thanks for the tips.