best tube integrated under $5000 ?

Try Mastersound's Reference 845. I have heard only Mastersound's little brother, the Due Venti. Based on what I've heard, the 845's can definitely be one of the best integrateds out there. A friend has heard it and he was shocked how good it was.

http://www.mastersoundsas.it/inglese/prodotti/reference845.HTM

Good Luck.

Thought it would be good to revive this thread!?

I spent some time at Deja Vu audio yesterday auditioning a pair of Audio Note AN/J's and they were hooked up to this tubed integrated:

http://dejavu-audio.com/synthesis-a40-virtus-integrated-stereo-amplifier.html

I don't know the price but it sounded fantastic and had an onboard dac, I would guess it was under $10K not sure if it's under $5K but well worth listening to if you can find it.

I would also give a listen to the Rogers 65 V-1 - very realistic sounding and  built to last.  msrp is $3995.  Oh yeah - LIFETIME warranty is also a plus.  Good Luck!