^you could always order something like that from Warmoth. It wouldn't be cheap, but it'd be great quality.
over driven tones
warmer and fuller sounding
isn't the primary concern of most bass players
Fuck all of these people.
Addendum: Listen to Black Rebel Motorcycle Club and DFA 1979.
Sorry if I offended you, I don't play bass and I was just going from what I heard.
Regarding amps v solid state issues, I did my honours degree on "blind" listening sessions comparing the two, albeit amp v amp simulation. It should be noted that while the amp won, it wasn't this huge victory that you might've expected.
Solid state amps have come a long way. I've got a little VOX 30W combo and my friend has a 30W Crate and they both sound killer. Although, I know mine has a power tube and I'm pretty sure his does too. As far as I knew (and once again, please don't jump down my throat if I'm wrong, I'm not a huge expert on amp tech) the big difference between tube and solid state was that the tube amp will "break up" at lower volume levels than the solid state. I've heard that you can get the same "break up" out of a solid state, it just occurs at much higher levels. That's why, solid state amps overdrive never sounds quite right, because it's not a true "overdrive." At clean volumes, though, it's significantly more difficult to tell the difference. Someone once told me the reason that a tube amp sounds so much better on clean is not the tubes, it's the other stuff they put in the amp (reverb, chorus, etc).