I'm building up a SL6C8 tB1 Celery 1.2 (Q229A358-0411) system that will be dielectric oil submerged/compressor cooled. I'm going to shoot for the magic 2.0 (166FSB) - If I make it I'll reward myself with a 9700pro. The 9700 should overclock like mad as well when submerged in -20C oil.
I've got a line on a 256mb PC166 CL2 module but I don't know if I'll get 512k. It'll just be a non-multitasking gaming rig so it shouldn't matter.
And yes I know I have too much spare time these days.