thanks again bigben, ive now found several places that should have the heaters in indiana
mind if i ask how these things are usually attached? just drill holes that are as close in size to teh diameter of teh heater and slide it in? do i need to use TIM on them? and any recommendations on thermal probes/thermocouple's and reader thingamijigs for them?
also could someone tell me where teh best places to put thermocouples would be? ive read through bill adams testing site thingy but i still dont quite get it and i am definately not gonna drill holes in my RBX or the Cascade taht wil be lent to me for testing from a friend.
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My rig:

P4(northwood)2.6C@3.0, 1 Gig of Kingmax DDR433@460Mhz, a grandmars(rebranded powercolor i think) 9800xt, Cooled by Four case fans:
three 80x80x25mm delta 50CFM fans@5000 RPM, the transparent blue led side panel fan that came with the case, a pair of blue vantec CCFLs and a Coolermaster Aero4. all controlled by my vantec nexus.
To be watercooled:
DD RBX
Maze4 chipset
silverprop Cyclone fusion HL
swiftech MCP-600 pump
custom aquatube based rez