Whats Line6's top o the line? The Vetta or summit aint it? There were a couple of gigging bands on the Guitarist forums who say they are really good for getting rock tones. You're looking at well over a grand IIRC though.
Joe, the Valveking will do classic rock and older metal rather well, its just not suited to the more death/thrash related music. A Jackhammer, DS1 or whatever will increase the gain just enough though.
I know a lot of people dont seem to like them, but for about 200 quid s/h you can get a Mesa V Twin preamp. This will produce a nice, thick, full on distortion/metal sound into a good amp.
Just found
THIS and yeah, over a grand. Its would be very bloody loud though at 150w :? I've heard nothing but great things about them (Beleive me, I love valves so I tend to go "nanananana!" :lol: ).