Koaster King: Speed, ME, High Roller, Big Shot, and Canyon Blaster (not previously mentioned) are all on the Las Vegas Strip. If you are up to it, you can walk (or strategicly take trams and moving sidewalks) to all of those without too much trouble.
Desperado, however, is a good 40 miles South on I-15 at the California/Nevada border at Buffalo Bill's. As a former world's tallest & fastest, I say it's worth the trip. 2 fantastic drops, 3 really good bunny hops, and a pretty darn good indoor helix are the highlights of the ride. But, it is "Magnum rough," but no OSTR's, so I can handle it!
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"X" marks the spot in 2001!