Just a second vote to the two ball putter clone. I also didn't agree with the price odyssey was asking for their putter (although the insert of the clones suck compared to the OEM club).

The alignment system is second-to-none. If you are good at judging weight and line, a 2 ball clone is the way to go. Line up your line, start your ball down your line (which good putters do anyway), and watch the ball fall in the hole. Not a magic wand by any means, but certainly the best alignment system I've ever seen.