Virginia:
McCain
HD-22 (south of Lynchburg) - 67.7% McCain, 31.2% Obama
HD-01 (very southwestern tip) - 67.4% McCain, 30.9% Obama
HD-19 (rural swath between Roanoke and Lynchburg) - 66.4% McCain, 32.3% Obama
HD-55 (Hanover County - Richmond exurbs) - 64.7% McCain, 34.5% Obama
HD-04 (SWVA) - 64.1% McCain, 34.7% Obama
Obama
HD-49 (Alexandria/Arlington) - 75.2% Obama, 23.8% McCain
HD-46 (Alexandria) - 73.8% Obama, 25.2% McCain
HD-57 (Charlottesville) - 72.2% Obama, 26.5% McCain
HD-47 (Arlington) - 72.1% Obama, 26.7% McCain
HD-48 (Alexandria/Arlington) - 70.5% Obama, 28.3% McCain
Not exactly surprising. There are plenty of black-majority districts in Hampton Roads and Richmond that went 75-80% for Obama.
Edit:
I'd be interested in finding the most extreme "opposite party" districts as well. The Deep South presumably has a few Democrats in districts even more Republican than Gene Taylor's. For Republicans, in Vermont there are probably a handful of long-serving Republicans in 70%+ Obama districts.
For Virginia, Democrat Joe Johnson represents HD-04.