Originally Posted by D-U-R-X
I use Avast
which has some nice features (anti theft as well as anti malwear).
It could be worth investing in Tasker
... I am pretty sure that you can create all of the features you are after and more. I am not any good with it, having only played about a little bit, but am sure that you would find Tasker - Android Forums
a useful place... the members in there would be able to help you get anything you wanted sorted... there is already a task that takes a picture and emails it to a specified email address when there have been too many incorrect pattern lock entries ([Profile] [front Camera] Photo/email image of device intruder
Thanks; that Tasker and example given are pretty impressive! One very important requirement I didn't mention is the sending of an email if SIM card is changed with new phone number (I updated my original posting). While very interesting I think the Tasker approach is a little advance for me at the moment. I'd rather find a turn-key solution like GotYa, but maybe a bit more refined