You mean you're going to buy an E6700 and not overclock it? That's just sacriledge!! LOL
Anyway, I personally would go for the Asus P5W DH Deluxe based on what you're after. It does depend on whether you intend to upgrade to SLi or Crossfire later on though. If you do, then you need to decide which route to go down as it will mean choosing a different mobo (the Asus P5W supports crossfire but not SLi) If you want the SLi path then I'd recommend a mobo based on the nVidia n680i chipset (such as one of the Asus P5N32 mobos), although these can be expensive.
As far as memory goes, I plan on buying an E6600, the Asus P5W DH Deluxe and Corsair Dominator PC8500 RAM. I've used Corsair modules before and never had any problems.
As you say you don't intend on overclocking, I wouldn't go for any memory over PC6400 as it will be a waste. I would stick with Corsair though as I've found their RAM modules to be bullet proof.
