Can anyone give me a run down on the range of Webley pistols? What is what and how are they different? Relative power? Desirability (subjective I know) etc etc.

I am getting into a bit of pistol collecting (not as a serious collector) and I'd like to get a grip on the Webley range.

Over the years I have had a Webley Junior (.177) and a Premier (.22) but both of these are long gone. I have recently bought a .22 Tempest off here and it seems a very decent gun to me.