Warung Taliwang, (Near Hotel La'mbitu). Opens at night. Roadside stall always packed with locals. They serve whole grilled chickens smothered in a mildly spicy Sumbawan Taliwang sauce and a range of sides, including rice, of course. The chickens are small, apparently free-range due to their size and might be enough for 1-2 people. A grocery store is located directly accross from it where you may purchase drinks. Ask around for the location, the locals know it and lineup for take-out around dinner time.50,000. edit
Hotel La'mbitu, Jl Sunbawa (5 minutes walking from bus terminal). Centraly located in Bima, has decent WiFi on all 3 floors and confortable beds. 180.000rp fan, 200.000 and up for A/C. edit
Marina Hotel, Sultan Kaharudin (5 minutes walking from bus terminal). The one and only upscale option in Bima - it's most likely to be one of the few places in Sumbawa with the amenities it offers.390.000rp. edit
Flores: Buses to the port of Sape for those crossing to Flores depart early in the morning (before 5 AM) and the trip takes around 2 hours. The bus terminal is within walking distance from the centrally located hotels. Price is 25,000 rp per person. Arrive early to ensure you can get a seat.