Centrally managed desktop firewall/endpoint security

[lists.canuck.eh () gmail com]

I've been looking for a centrally managed desktop firewall/endpoint security solution to tighten our notebook security 
policy but I am having a hard time finding any good reviews/group tests.  So far I have come across the following:

InfoExpress CyberArmor
eEye Blink professional
Check Point Integrity

The problem is that I'm at a business with less then 30 notebooks so the per computer price is extremely high with the 
central server requirements (although I think Blink comes with the management software included).  What products have 
other people used and found effective?  I'm really looking for something with a solid firewall for inbound traffic and 
program control for outbound.

Thanks in advance