I got the Lisle from Genos. At $23 It was very reasonalbly priced for swapping to 60#. Napa and such wanted around $40 for a similar style compressor.
Some folks do not like Genos because the handle is too long to maneuver around whilst changing. I just pulled the handle cover off and hack sawed the handle just past the first rivet, cut the handle cover to size, and voile! - my own custom stubby spring compressor.
Bottomline, it worked great and was very reasonably priced. As others have noted, you will need to "screw" the #60 onto the compressor to get the best results.
Edit: PS Almost forgot, forget the "cam" handle doodaw and install a slightly longer bolt with washer and it works great.