Jay,
I had a stereo Berning that I used with 3 different preamps. First, I had a Cary SLP-2002(very flawed). Then I used a Joule LA-150(paired w/Pentagon PS3 phono stage), CAT SL1 Mk III w/internal phono, finally a Joule LA 100 mk III(& OPS1 phono). Others have reported First Sound preamps as a good match, too.
The LA150 had the best line stage, but phono performance drove my changes. Severe unusual RFI issues in my new room led me in another direction(i.e. all balanced gear), but that shouldn't affect your thinking.
Feel free to contact me offline if you'd like to discuss by phone. Cheers,
Spencer