mid-strip 3-4 star for $130 might not happen. good idea to try though, as being on the strip makes access to all hotels easy. however, if you dont stay on the strip, you can valet at almost any casino on the strip for free(just tip the runner $2-5). and the bus from the strip to freemont is only $2.00 its worth not having to deal with downtown streets/parking(and worrying about your car). If you do rent a car STAY AWAY FROM LV blvd. if possible. traffic is hell on the strip. get a city map before you go and learn the streets that parallel LV blvd. its pretty easy/quick to zip around on the streets behind the casinos.
if you like burgers, go to "strip burger" its attached to the fashion show mall across from the wynn. if there's one thing I know, its a good burger, and thiers is in my lifetime top 10.