P5B w/ WiFi or P5B-E and WiFi adapter card?

[Jumpem]

I only care about having one graphics slot, and the P5B-E has more PCI-E and PCI slots.

 

[n7]

The P5B-E presently only has up to 2.1V vdimm, & fewer voltages options overall IIRC.
But it's still a great OCing mobo, so as long as you can get it for significantly less than the P5B-D, go for it.