Upgrade path...Need suggestions


Current system for 2 channel:
Arcam Alpha SE8 cd to
B&K Ref 20 to
Bryston 3bst to
Gallo 3.1's 88db sensitivity
System is also used for h/t
My first thought was to upgrade the B&K to a tubed pre but after some looking I found no tubed pre's in my price range that had zone 2 which is very important to us.
Now I am thinking about an amp upgrade. Have never had tubes but want to give it a try. How much fiddling do they require? Keep reading about biasing, pentode, triode etc. and have no idea what it means. Is it a constant battle or set it and forget it? How much tube power do I need?
Budget is <$1000 so used is the way I want to go. Would like to get some recommendations. Looking for that "tube" sound. Soundstage, warmth, detail, midrange, etc..
Thanks for any suggestions.
Steve
scoly1
Look at this stuff, and read the reviews: (http://www.upscaleaudio.com/view_category.asp?cat=96) There are bound to be some on this site used at some point. Any effort you put into dealing with tubes is worth every moment. That's IF you love the sound of live music!
Oh- And you asked about if tubes are a hassle? These PrimaLuna pieces eliminate the bias adjusting, and even feature a soft-start circuit to enhance your tube life. Power requirements: Your Gallo's aren't extremely efficient. How loudly do you listen to your music? How big is your room? Are you a bass freak? What genre(jazz, classical- philharmonic or chamber, rock, pop, etc.)? If you read all those reviews on the integrateds- you'll get a feel for the results the reviewers got with a variety of speakers and different types of music. That should help you in your search.
Thanks Rodman.
Room is 26'9 inches x 16'9" with a vaulted ceiling. We listen from fairly soft thru loud but not uncomfortably loud. Probably not the exact answer you were looking for but best I can do. Rock, jazz and blues, both acoustical and electric.
Would a tube amp around 40 to 60wpc be enough? I read that tubed power seems to equate around 2x compared to ss.
Thanks again.
Steve