Do you have a favorite winery in Austria, one you buy from every year? For me the wines from Brundlmayer and Gobelsburg from Kamptal offer very great quality and maybe better value than the great wines from the Wachau, which are very pricey over here.
Actually we don't buy the same wine every year. Here in Vienna, we are quite priviledged to have a lot of wine areas within an hours driving distance. It is possible to get good stuff directly from a lot of small producers at very reasonable prices (think of 5€ to 10€). And don't forget that I can visit a couple of quite good producers by subway!
Anyway, I rarely (well, almost never) buy the big guns from the Wachau. I just can't afford them. We bought quite a couple of bottles from the Donauland wine area in the last years, very fresh Veltliners and nice Rieslings. I have no idea what is available to you from that area.
With respect to Heide Schröck - I am afraid I never had a single wine from her but she seems to be quite popular overseas.
As you surely have realized, I am talking exclusively about white wine. Considering the Reds, I am still not totally convinced. There is a lot of good stuff available but from a QPR point of view it is a lot easier with the whites. I have to admit that I drink more reds from outside Austria. Shame on me.