Thanks for the info & links guys, and dang, it would have been nice to put a 350Mhz in there!! Bad Keropi, bad! :-D
Are they BGAs or PGAs ?
EDIT: the 603 looks like BGA.
Wow:
"e300
Freescale has enhanced the 603e core, calling it e300, in the PowerQUICC II Pro embedded processors. Larger 32/32 KiB L1 caches and other performance enhancing measures were added. Freescale's PowerQUICC II Pro SoC processors bear the designation MPC83xx, and come in a variety of configurations reaching speeds up to 667 MHz."
If there was only a socket on those Blizzards!