Thanks jsc that takes care of question #3. Let me rewrite the first two questions shorter..
1. Computer parts arrive today, but video card was delayed until tomorrow, and there is no on-board video. Can the thermal paste sit between the cpu/cooler for 24-28 hours safely, and with no sort of conductive loss, if no power is given to them for the duration of that time frame? (until video card arrives and I fire it all up)
**-or just wait to install the cpu/cooler when the video card arrives so that the paste is freshly applied?
2. Megahalems cooler + Megahalems paste? *or Megahalems cooler + Arctic Silver 5?