I'm riding this July from Charlotte, NC to rally in Oregon. I've never been west of Denver before. Anyone have "roads you just gota ride"

Route East to West:
Charlotte July 10, 2013
to Denver,
to Moab, UT (Iron Butt 1000 to Salem, OR)
or to Rawlins, M (Iron Butt 1000 to Salem, OR)

Route West to East:
Salem, OR
to San Francisco (gota ride over the Golden Gate Bridge, bucket list)
to Reno, NV
to Salt Lake City
to Denver ?
to Cheyenne, WY ?

What's the ride like from Reno to Salt Lake City?
How much spare water do I need to carry for ride out west in July?