if you are looking for new, Thomann have a decent selection:
[url="http://www.thomann.de/gb/short_scale_basses.html"]http://www.thomann.de/gb/short_scale_basses.html[/url]
I would give Danelectro a mention, they do a couple of short scale models. I have a Longhorn bass and it is very quirky, very light and very eye catching. Sounds huge, too.