I'm mining on api2.bitcoin.cz:8332 more than 2 hours now.
pointed a miner at that just now. no joy. all three of my rigs now point to a different one of slushs addys with no connection

cgminer is configured with 4 pools (slush primary, others as failovers) and is mining elsewhere at the moment but slush is my favorite. sigh. ah well at least cgminer will keep trying slush.
sooner or later these ddos idiots will tire and we can all relax again.