Thank you all for the advice.
1. I like the sound of tubes but I'm not opposed to SS at all. I should say I'm not sure what would work best for my musical tastes. Here's some of what I listen to:
>> Portishead, Yes, Pantera, Rage, 2Pac, the Beatles, Al Di Meola, SRV, Pink Floyd, Tool, Kate Bush, Porcupine Tree, etc. And lots of progressive rock....
Lately, I've been going through a yacht rock phase.....
2. I'd probably lean towards new because I'm not confident that I'd know what to look for in vintage (and I'm impatient!).
3. Phone input? I don't think so (but never say never....). Everything would go through my PC at this point.
4. DAD - I have a Micromega that I'll be replacing with either a Schiit Modius or Cambridge Audio DacMagic (opinions on these are welcome!).
I'll check out the Cherry STM.