I heard the LSi series at the last HES in NYC. They sounded very good on some DVD and DVD-Audio material. I just got some of last years models (f/x300i) to use for my surrounds. I think Polk gets a bad rap mainly because they are sold at major chains and not Hi-Fi stores. In most of the chains, they are not set-up properly so people can't get a true picture of what the speakers sound like. Polk speakers can be a very good deal for the money.
An Outlaw 1050 or a 950/7100 with Polk speakers would probably work out very nicely.