You'd probably also be able to overclock a Northwood A 2.0-2.2GHz to a 533 FSB for 2.67-2.93GHz as well. You could even try pushing your luck with a 2.4GHz NWA.
I have Northwood CPU 2.8B FSB 533 (OEM). Your for 90-100 dollars with shipping and handling. If you think this is fair price then e-mail at xrock.xrock@gmail.com