For your budget, I'd suggest looking at a good laminate or hybrid (solid top, laminate back 'n' sides). I managed to pick up a second hand Gedo hybrid for a lot less than your budget, which I'm really happy with, although I use it mainly for rockabilly / rock'n'roll stuff. If you're transporting the bass a lot, a laminate or hybrid bass will stand up to the rigours of the road better. As Artisan said, if you're going to amplify the bass it makes very little difference what it's made of, and, to an extent, the laminates are less prone to feedback.