It's pretty straight forward. No special instructions required. You will probably need to remove the acoustic cover from the top of the engine.
To do this, first disconnect the plug from the EGR valve. Then loosen the oil cap completely, after the oil cap is fully loose, continue to turn the oil cap counter-clockwise to loosen the oil filler stem from the valve cover. Then just remove the oil filler stem and carefully pull up on the cover to disengage the two retainers on the cover from the metal studs on the engine. After removing the cover, temporarily replace the oil stem and filler cap to prevent any contaminants from falling into the engine.
Any decent plug wire set will do. I'm not partial to any particular brand. However, the only spark plugs I would recommend using would be (in order of preference) AC Delco 41-101, NGK 7164 (also goes by NGK p/n TR55IX), or Bosch 9601. Using ANY other plug would be very risky IMO.
I've attached a picture of the firing order below.
All info in this post can be applied any 2005-2009 Chevy Equinox w/3.4L engine.