Check
this.
As you'll see, the 1 GHz P3's are:
MHz..... FSB Stepping.... Form...... Volts CPUid Retail..... OEM.....
1000... 100 cC0........... SECC2... 1.70 0686h SL4KL.. SL4BR...
1000... 133 cB0........... SECC2... 1.70 0683h SL4FP... SL48S...
1000... 133 cC0........... SECC2... 1.70 0686h N/A...... SL4BS...
1000... 133 cC0........... FC-PGA.. 1.70 0686h SL4MF.. SL4C8...
Oh, yes - almost forgot. I don't know where you can get them.
Maybe check
PriceWatch carefully. Check out the vendors at
ResellerRatings before you order.
Same for
iBuyer.net.