Foxit is a good basic PDF reader and I have used it. But it lacks a few features that Adobe has and I switched back.
The trick with Adobe is going around the DLM and getting JUST the reader without the other crap - sooper turbo speed laucher and acrobat dot com, toolbars, etc. - which seem to be just resource hogs that do nothing useful. I'll allow a hook to load a file from the browser but what all that other stuff does I don't know.
Posting from an undisclosed location in the Nation of Bitter Clingers!