Jfz, Lately I've been using RCA red base 5692's. They're oldies and hard to find ones that aren't microphonic but they last upwards of 10,000 hours and really sound sweet.
One of my all time favorites is the black glass Tung Sol 6SN7 from the 40's. They're quite expensive and also hard to find ones that are quiet and measure well.
A sleeper that JWM and I both like is the GE coin base 6SN7. I use a couple of them in my Atma-Sphere MA-1's and really like them a lot. Last time I was at JWM's, he was using them in his MW/Oppo 105.
By the way, I'm still enjoying the Modwright/Sony 5400 while JWM has gone from the MW/5400 to the MW/Oppo 95 and more recently the MW/Oppo 105. I always preferred the MW/Sony over the MW/Oppo 95 but have yet to compare my MW/Sony to JWM's MW/105. I suspect the MW/105 is a nice improvement over the MW/95 which I found to be less open, transparent and detailed than the MW/Sony.
As for the rectifier, I've been using a Mullard/Blackburn GZ34/5AR4 which I'm quite happy with. I also have a Philips/Holland for back up; another really nice tube.