The stock EH tubes are too bright in my setup, but it has a lot of details and nice punchy bass that I really like. I guess it really depends on your system.
I recently got some NOS RCA black plates recommended by Brent Jesse at audiotubes.com, and I really like them. It sounds much warmer than the EH without the bright top end. But it doesn't have the punchy low end like the EH.
I also just got the Genalax Gold Lion rectifier recommended to me by a couple of members here. I haven't installed it yet. I'm hoping it might improve the bass.
Anyway congrats @testrun, and good luck with your new Cary. Let us know how it goes!