I'm certainly impressed by the document and envious that someone had enough free time to put that document together. I don't know enough about drivers, MOSFETs, capacitors and chokes to make heads or tails of the pros and cons of 6-phase vs 8-phase power. The signal traces that are associated...
You had more misconceptions than you realize. The P5B Deluxe does not support SLI. I don't even think that the P965 chipset can support SLI. The P975x intel chipset supports Crossfire and can be made to support SLI with hacked drivers.
The reviews for the DS3 board have been fantastic, but it is primarily praised for its ability to support very high front-side bus (FSB) speeds. Reviews have stated that the Vcore drops quite a bit when pushing high 300's to low 400's on the FSB, but the board was very stable at high clock...
I always take every oportunity to purge my hard drive and start anew. However, you will be fine if you just install all your hardware on the new motherboard and boot up. Windows will detect a whole slew of new hardware (chipsets, controlers, etc). If you have any undetected hardware (look for...
The 965 chipset is the mid-level chipset from Intel. The 975x is their enthusiast product line. Just be aware that Core 2 Duo support is universal for the 965 chipset, but varies from motherboard to motherboard for the 975x chipset.