craftgrrl | Glue Gun Assistance required

Allright.... i'm wanting to get a bit more crafty.

My next step is using glue guns. I know how to use them, we use industrial ones at work, but obviously craft ones are a bit different.

The things I will be making will in essence be smaller, like hair clips/ fascinators/ BROOCHES etc.... So I need to know...

Must I get "low" or "super low" temperature?
Are there ones with smaller nozzles?
Certain brands must be better than others right?
Will I be able to bond fabric onto metal? Felt onto metal?
Is there anything in particular I should avoid?

Tell me what type I should be looking at please please please, and you will get my ULTIMATE RESPECT!!!!

BONUS POINTS if the recommended brand and glue sticks are available in AUSTRALIA