Yes, Kuszczak is Polish - played well against AS Rome. In fact Poland is lucky with goalkeepers. We have Kuszczak (Man U) and Lukasz Fabianski (Arsenal Londony) and the most impressive now Artur Boruc at Celtic Glasgow.
And of course Jerzy Dudek (Liverpool FC and now at Real Madrid).
Podolski was born in Poland but his family moved to Germany so he plays there now. The same with Miroslav Klose.
Zbigniew Boniek is told to be the best polish player ever. He got a bronze medal at World Cup 1982. Then he played in AS Rome and Juventus Turyn - now he work in polish football federation.
Grzegorz Lato is also famous - he was a top goalscorer at World Cup.
Currently the best polish player is Artur Boruc - Celtic Glasgow goalkeeper. In good form is also Jacek Krzynowek (VfL Wolfsburg) and Ebi Smolarek (Racing Santander).
As for youngsters I would say that Jakub Blaszczykowski is very impressive at Borussia Dortmund and Fabianski from Arsenal is very good, but as for now he is on the bench.