Vialli, Ravanelli, Di Matteo and to a lesser extent Amoruso, Pistone, Festa, Maccarone, Macheda ( ).
I can't believe I forgot those first three! And I'll give you Lorenzo Amoruso, Alessandro Pistone and Gianluca Festa (just), but Macheda hasn't yet proven himself (plus he's come through an English youth system) and I won't even entertain the idea that Massimo Maccarone was 'successful' .
And you forgot Massimo Taibi
Yeah to be honest the first three were good, the others were more or less a joke and pretty much the only Italians I could remember playing in the PL for any length of time. Except Macheda who I stuck on there because I find it funny when people get pissed about him being talked up as the second coming of christ.