Most hotels will put a couple hundred dollar hold on your credit card when you check in to cover incidentals, room damage, charges to room, etc. Also, specify to driver to take Swenson out of the airport - tell him NO TUNNEL.
Taxi from the airport will be more than the return trip due to the airport fee. It is not that far of a walk to the strip - about 10 minutes. They are set up in a Villa-type arrangement behind the main building that has the casino in it. Tuscany rooms are quite decent sized with little kitchenette areas in them.