Embassy Inn - Dupont
The Churchill Hotel - Dupont Circle
Windsor Park - Dupont
State plaza - Dupont
Carlyle Suites - Dupont
Omni Shoram - Adams Morgan/Dupont - Big conference hotel
The Channel Inn - Waterfront
Best Western - Waterfront/Downtown
River Inn - Foggy Bottom
One Washington Circle - Foggy Bottom
The Wardman Park Marriott has a lot of rooms.
The Quincy - Downtown

Savoy Suites - Upper NW/Cathedral Heights



**Yikes**
HoJo on NY Ave - Yikes
Kellogg  - Galludet
President Inn - Galludet
Motel 6 - Brightwood


Alexandria/SilverSpring/College Park are all metro accessible and  
probably have some "reasonable" hotels. Of course if you want teh real  
americana feel you need to be in a motor inn in a more rural county  
and a car, nee a truck.