hi guys!!!!!!!!!!!!!!!!!!!!!!!

ill be having my own cybercafe as soon as I get my loan approval!!!!!!!!!!!!!!
is there a way that im gonna buy a firewall software or is it important in a small business like a cybercafe to have a firewall!!!!!!!!!!1
and my cousin told that i must have at 3 anti-virus software cause theres a lot of virus in the internet!!!!!!!!!!!!!!!!!!1
he also told me that the trojan virus is really a headache!!!!!!!!111
could someone explain to me this firewall is it really needed or not in a small business like this!!!!!!!!!!!
and secondly is there a way to block this Trojan virus or is there a way to remove or deletre this virus incase my anti_virus detected but cant delted it !!!!!!!!!!!!!!!

help
and one more thing could someone help how to manage a cybercafe????????
just any sugeestion under the sun !!!!!!!!!!!!!!!!
ithanks a lot and
GOD Bless You Always
Peace and Love in Christ