Those CPU's would be damn expensive! The 2.2 100 MHz fsb costs a ton right now; it's much more feasible to buy a 1.8A and O/C it to 2.2-2.4 GHz. The 2.4's would probably be 3X more espensive than a 1.8A.
Still, I know not everyone likes to O/C and CPU's running stock are more stable/last longer; just my $0.02