I'm currently playing this one only as a belly putter 43". I fight playing a belly putter, but I do seem to be more consistent with one.
I'm back to this after straying for a couple rounds. I've never putted better with any other putter. It's a Wilson Patty Berg "Cup Defender" blade putter. Yep-50 something year old ladies' putter, with a short 33" extra narrow shaft, and a round grip. I've never lag putted as well, and my 4-6 foot putt make percentage is much higher than it's ever been. Considering selling my Cameron, just because it's sitting in the closet collecting dust.
Arnold Palmer "The Original" by Callaway, blade putter 33" in length. similar to the one for sale on ebay.
Switched to an Odyssey white hot XG #9 last season but wasn't that happy with a heel shaft as I thought I would be (kept pushing my puts). Loved the soft face though, so this season I'm putting with an Odyssey white steel 2-ball center shaft putter and couldn't be happier. Really like the balls as alignment aid (apparently more people than me like them =)), and the steel insert makes the putts come out slightly hotter (which I prefer) than the white hot, while still maintaining the butter soft feel. Putting average has dropped from 36 to 32 so far this season!
Recently started putting with TM Corza Ghost long putter, which I use as a belly. It's 48", 440g and heel shafted so I could adjust it a bit flatter -- although those big, fat shafts are a biotch to bend. Never been much of an insert fan, but the feel (such as it is with such a heavy head) is quite pleasant.