Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Nikon D60 and Casio EX-FC100 side-by-side from the front, back and top in their relative dimensions. Nikon D60 has external dimensions of 126 x 94 x 64 mm (4.96 x 3.7 x 2.52″) and weighs 522 g (1.15 lb / 18.41 oz) (including batteries). Casio EX-FC100 has external dimensions of 100 x 59 x 23 mm (3.94 x 2.32 x 0.91″) and weighs 156 g (0.34 lb / 5.50 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon D60 and the Casio EX-FC100. Casio EX-FC100 is clearly the smaller of the two cameras. Its body is 26mm narrower, 35mm shorter and 41mm thinner than Nikon D60. As you can tell, actually this is not a fair size comparison since Casio EX-FC100 has a built-in lens but Nikon D60 doesn't. Once you put a lens on D60, its thickness will increase significantly.
Here is the back view size comparison of the Nikon D60 and Casio EX-FC100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-FC100 is significantly lighter (366g ) than the Nikon D60 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on D60, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Nikon D60 nor Casio Exilim EX-FC100 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top DSLR Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Casio EX-FC100's 2.70" LCD screen is slightly larger than Nikon D60's 2.5 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.