Being a Tor exit node

Lately, I have been contemplating whether or not to become a Tor exit node. After using Tor for the last year or so, I've always wanted to give back to the Tor community and network, since it's currently dreadfully slow.

But, I've heard stories where people have had their servers or computers seized by the local police for accessing illegal content on the internet and I've been reluctant because of this... ( like: http://calumog.wordpress.com/2009/03/18/why-you-need-balls-of-steel-to-operate-a-tor-exit-node/ )

I really don't want this to happen. I've been wanted to get a separate IP address for my server alone (can't think of what it's called, but you get a separate modem), but I haven't had a response from my ISP yet. Hopefully, if I do get a visit from the partyvan, they can just take this single server linked to the IP (so they won't need to confiscate my personal computer). I don't know of any other pretensive measure that I can take though... meh.