Sounds good - so far though, mapquest has been pretty accurate. For example, they predict 8 hours from SD to Sacramento and that's what I've been getting...with 30 minutes deviation.
Speaking of bendy twisty mountain roads, on the way to Reno from Sacramento, I took Route 49 North from I-50 to I-80 in the pouring rain and all I can say is PURE MADNESS. Tons of twisties, slopes, and did I mention twisties? Too bad I was in a hooptie Civic scared of losing myself...probably would be a different story in a BMW. Route 49 was surprisingly hick, as well. The Post Office off the road was just a typical cowboy-movie shack.