I use a Stihl FS55R and am really happy with it and got it at Hemmings over on Lansdown. I originally purchased a curved shaft model and didn't like it, so I exchanged it for the straight shaft and like it alot better.
As for the push mower, I've got one sitting here and it's yours if you want to come up and get it, I'm just north of Youngs Point.
It's a 4 year old Yard Machine with a Briggs & Stratton 4 stroke motor and 20" blade and it runs great and normally starts on the 1st pull, infact I just fired it up a couple days ago after sitting all winter and it fired up 1st pull.
Only getting rid of it as I bought a new one for doing the trimming where the riding mower won't reach.