I have to admit, I've been using endpoint for a bit, but I always like to have as many layers as possible- starting at the modem :)
I don't know what resources you have available, but have you considered setting up a domain controller?
Are you the only user on your LAN?
I was at the Microsoft release of Office 2007 when one of their demonstrators was showing off the capabilities of some...
Anything within the range of 188.8.131.52 - 184.108.40.206 is reserved for multicast use, and is most likely coming from your router or another host...
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