Discounting those from substandard teams (Ireland, Syed), and those who are non-regulars (Anderson, Lewis, Hilfenhaus, Tait, Langeveldt, Sreesanth, Bond, Collins - the latter three not through the paucity of their bowling), that's 3 bowlers, 1 of whom (Martin) is decidedly on the rubbish side of average, 1 (Hoggard) who was utterly hopeless for ages and who I struggle to remember the last time (The Wanderers in January 2005, probably) he produced a devestating spell with primary use of conventional swing in stereotypical "swinging" conditions.
Then you have Vaas, who is and always has been the most hopelessly inconsistent bowler ever. Round corners one day, gun-barrel the next.