Sounds Recorders, Screen Capture

Hi,

Newbie to the Android world and enjoying the HTC Desire.

I'm trying to find two (maybe three) apps and wonder if anyone can help

1. A general purpose audio recorder
2. A call recorder - one that would automatically record every call would be ideal
3. A screen capturer

Can anyone make any suggestions for good apps to try?

Many thanks,

regards,
/alan