AFAIK they haven't received their F-16s yet (first four in September 2006 according to AFM), so MiG-29 is the premier and only fighter in Polish Air Force service, unless you want to use Su-22M4 fighter-bombers fitted with some R-60s... the Polish MiG-29s seem to be in pretty good shape though. MiG-21 were retired in 2004 I think, some are reportedly sold to Vietnam.
Dec/Jan - April 2006Â Â Â Â Â Â Â 4x Polish MiG-29
April/May - August 2006Â Â Â Â Turkish Air Force (probably 4x F-16s)
August - November 2006   4x Spanish Mirage F1M, 142 Escuádron, 14 Ala
We've had Belgium, Denmark, UK, Norway, Netherlands, Germany, US, now Poland, and meanwhile Italy is air policing Slovenia.