Tube suggestions for hybrid integrated amp


I've had the stock tubes (12AU7) in my Rogue Sphinx for a few years now and I'm ready to upgrade.  Right now I'm leaning toward  Tungsram ECC82 but I am open to suggestions.  I'd prefer to buy within the US as I'd prefer delivery in the next ten days or so.
Speakers are old Dynaudio Contour 1.3 MkII.  The room is lively but not overly bright or ringy.  I listen to a lot of classical chamber music, combo jazz and (mostly classic) rock. 
Any suggestions appreciated.
128x128tostadosunidos
Update:  I've had the Tung-sol tubes in for a little over a week.  The difference is more dramatic than I expected.  Better separation of the instruments, warmer/smoother sound overall without loss of detail and a sumptuous low end (so much so that I'm considering searching for my foam inserts that go in the rear ports).  Good digital recordings sound more analog to my ear and good LP's sound near-glorious.  When I first bought the Rogue Sphinx hybrid I was disappointed that it didn't sound much "tubier" than my previous integrated (NAD C 326BEE) but now I have achieved that goal and am quite pleased.  Thanks again to all who chimed in and especially to Andy at VTS.
It's good to hear that the NOS tubes worked out well for you.  Maybe you'll want to try a different brand of tubes one of these days.