Haha, good luck keeping up with all of the oscillations in the climate literature!  It's confusing even for the specialists.  There are quite a few other atmospheric teleconnection patterns aside from the NAO, PNA, AO, and AAO (also called the Southern Annular Mode or SAM).  The Climate Prediction Center monitors some of the others (in addition to the NAO, PNA, AO, and AAO) on monthly timescales - you can find more information here: http://www.cpc.ncep.noaa.gov/data/teledoc/telecontents.shtml.  However, I think you hit on most of the dominant ones.  Of course, I assume that ENSO is your favorite. ENSO is king of the tropics on seasonal and interannual timescales, but the MJO is the major player on subseasonal timescales.  The PNA, NAO, and AO (AO and NAO are closely related) are the dominant Northern Hemisphere patterns in the midlatitudes and Arctic.  The AAO/SAM is the dominant pattern in the Southern Hemisphere, but the two Pacific/South American patterns (PSA1 and PSA2) are important, just as the PNA is very important for North America.  The PDO and AMO are dominant modes of ocean and atmosphere variability on decadal and interdecadal timescales.  The QBO is a very regular biennial oscillation in the tropical stratosphere.  That's a very quick summary of the major climate patterns that impact our weather and climate from days to decades!  That doesn't mean that other patterns do not play major roles because we know they do from time to time.