Finding a good eBook reader for PDF files

I find that navigating PDF eBook with Adobe Acrobat 8 is kind of a dizzy experience, so I looked around and found that FoxIt Reader 2.3 does a slightly better job as a viewer for PDF files. In fact it's even better than the Adobe Digital Edition as it provides more functionality. Then I found out that I can make Foxit Reader portable by grabbing this and apply it on the top of the zip version of Fox it.