[quote name='ChickenKiev' timestamp='1361915877' post='1993148']
The band I'm joining is hardcore/metalcore, so I've been eyeing up a thunderbird-type bass, as from what I've seen they are perfect for rock an metal (and they look drop dead gorgeous too!).
[/quote]
Some sincere and friendly advice from someone who has played a Gibson T-Bird. I think you have summed up T-Birds in that sentence of yours "from what I have SEEN they are perfect for rock and metal" Exactly, you need to close your eyes and use your ears and you may change your mind. T-Birds have always looked very "rock" and they truly appeal to the eyes and look very tough on stage slung all low and black. However you will find that very few rock or metal bassists record with Thunderbirds (they are often reserved for the live show), and although there are many exceptions I would say they are not a foundational instrument in either rock or metal. I.E. both genres could get along fine without them. Their sound sits very far down in the mix and the T-Bird is really the bread and butter of bands where they hope the bassist will not be heard. If you think of really killer aggressive or melodic metal or rock bassists, the ones that played a T-Bird are few (I know I know there are several that made great stuff with them, but seriously). Many T-Bird players are more like stage accessories. Think Nikki Sixx (inaudible T-Bird rumble) vs Steve Harris (hard hitting P-Bass Fury)...not that you have to be lightning fast and noodly like Steve, but I think if you decide on a T-Bird style bass, choose the one that sound most like a Fender, or change your mind. I bought one and it looked really cool. Sounded like mud and I sold it with a tear in my eye because is was beautiful, but hey that's just me. In my opinion, for real metal attitude get a black precision-style bass, or anything else that has attack and presence, and put a pentagram on the scratchplate or something to make it look the part. Skip the T-Bird and spend that money on a better amp.
A lot of rock bassists go through a T-Bird phase, but very few are devoted to this instrument. I think it frustrates most people to the point where they get rid of it. You may be the exception, but take time to think this through carefully if you are on a budget like me, and cant afford to have a bass collection. Look and listen to what the people you really like play, and maybe take that as a starting point. Maybe the T-Bird knock-offs and versions solve the tone issues I had with my genuine T-Bird? I don't know.