I use Vuze, with ipfilter.dat
and one cool thing is that in a click you can get access to the whole list of blocked and banned IPs.
Accidentally i clicked it today and i noticed several antip2p groups listed there as blocked IPs that weren't allowed to connect to me.
Pretty spooky, when you come to think how things are getting tighter and tighter nowadays.
by the way, i was downloading from private trackers, none of them even considered remotely hard to join in. but that means shit, i also caught few of them in some trackers you wouldn't imagine...
PS: Vuze rox.