I wrote WebPass ( http://webpass.rkeene.org/ ) for a similar reason. It's extensible with domains having password requirements and does syncing (of parameters for passwords, never actual passwords -- since they are generated). The UI is bare, but it's open source (and aside from the syncing, done entirely client side).

The sync'ing is done with a FIFO, two clients connect with the same key and they each get what the other one POST'd, no data is logged on my side.