Not my best buy, Peter, but if you want a bit of exotica in your early days you might try a tailstock scroll chuck from Chronos. It's hard to find on their website by describing it, so use the reference number 154032.
It's a "unimat style" 3 jaw chuck, the old unimat SL used them and they can be beautifully made
Their downside is they don't grip as tightly as a jacobs keyed chuck and you bash your fingers a lot getting them unscrewed
There is a keyed version, item number 281343093107 on a well known auction site, 120 quid though
Edited By Ady1 on 12/05/2015 10:57:20