Log Monitor with multiple regexp

[newbie]

Hi,

Zabbix version is v1.1.2 on redhad Linux

As you can tell my by login, I'm new to the zabbix world.
Forgive me if this question has already been asked...

Question Part I...

Is their a way to monitor files with multple regexp...ie

I have FILEA and I would like to be alerted when the following messages appear in FILEA. ( ERROR, FATAL, WARNING)

In FILEB, I only want to be alerted when the message...(Access Denied or "Your Permission has been denied")

Part II.

Once I receive the message is their a way to aggregate the mesgs?
This way I will only get 1 out of the 100 mesgs that comes within 5min timespan

Any help would be appreciated.

Thanks