"I may be wrong but you can manage multipule switches by adding them to a cluster anyway so the one IP address is a mute point you can cluster off of any port."
Are there any other advantages?
If i plug one half of an etherchannel into each of two clustered 3550's will it work?
(i.e. gi0/1 &0/2 etherchannel from san switch going to gi0/1 & gi0/1 on two clustered 3550's)