Any of the three would be great pickups if one happens, here's their numbers for comparison sake.
Anquan Bolden 6-1 217 age: 27 10/3/1980
2003 Arizona Cardinals 16 16 101 1,377 13.6 71T 8
2004 Arizona Cardinals 10 9 56 623 11.1 31T 1
2005 Arizona Cardinals 14 14 102 1,402 13.7 54T 7
2006 Arizona Cardinals 16 16 83 1,203 14.5 64 4
2007 Arizona Cardinals 12 11 71 853 12.0 44T 9
Roy Williams 6-3 211 age: 26 12/20/1981
2004 Detroit Lions 14 11 54 817 15.1 46 8
2005 Detroit Lions 13 12 45 687 15.3 51T 8
2006 Detroit Lions 16 16 82 1,310 16.0 60T 7
2007 Detroit Lions 12 12 64 838 13.1 91T 5
Chad Johnson 6-1 192 age: 30 1/9/1978
2001 Cincinnati Bengals 12 3 28 329 11.8 28 1
2002 Cincinnati Bengals 16 14 69 1,166 16.9 72T 5
2003 Cincinnati Bengals 16 14 90 1,355 15.1 82T 10
2004 Cincinnati Bengals 16 16 95 1,274 13.4 53T 9
2005 Cincinnati Bengals 16 16 97 1,432 14.8 70T 9
2006 Cincinnati Bengals 16 16 87 1,369 15.7 74T 7
2007 Cincinnati Bengals 16 16 93 1,440 15.5 70T 8