[iceman (Mike)]

Hi guys.

Please tell me all I need to know about speedlite flashes..

- They hook up to the hotshoe on top of the camera?
- Do they need batteries or other source of power?
- What do the different models mean (eg; 430EX, 580EX, 220EX)? There's a large difference in prices.. I assume it's the power of the flash output?
- What's a diffuser do and do I need one?
- Are there any brands I should look out for?
- Are there any places I can pick them up cheap, or should I look on ebay?

Thanks for your advice.