Cetera is your man, give him a shout.
I've tried loads of Spectors, and a couple of mates have owned them. I can tell you, they've all been brilliant basses, every one of them, from the cheaper to the more expensive models.
Quite a big, in your face tone generally, bright highs and gut thumping lows. They can be a little clinical sounding sometimes and some people find them too much to handle in terms of finding a subtle tone, depending on what music you play. I think of Spectors as being a bit like the big dog next door that always barks and makes you jump when you walk past it.
Great basses indeed.