I am using a sloket that support Tualatin celeron up to 1.4 from upgradeware.com.
I have it in my Abit BH-6, still run rock solid.
I would buy the 1.3g Tualatin celeron and just overclock that, mine is overclocked on 112 FSB to 1.45 g.
Not all slockets support the Tualatin which is FC-PGA form.
Make sure you have the latest bios or the last one they every published.