Pros & Cons (DSLR Cameras)

Pros:

• Greater lens versatility.(Wide variety of skills)
  Several manufacturers' SLR lens system offer more than 40 lenses,each optimized for its intended purposes. Example: Speciality optics such as macro and perspective control lenses,ultra-wide-angles.

• Almost always better image quality at a given resolution. 
  In other words, 10 mega-pixels from a digital SLR beats 10 mega-pixels from a typical digital camera. This advantage is especially dramatic at higher light sensitivities

• Better Performance
  Digital SLR have faster auto focus, shorter shutter delay, faster continuous shooting, and a bigger memory buffer.
• Greater Flexibility Access to a much broader range of accessories,including powerful external flashes,wireless transmitters,and remote triggering devices.
• Usually a more functional "shooter's" design.
  Some designs are better than others, but digital SLR s tend to have easily accessible thumb and forefinger wheels for exposure settings, vertical position shutter releases, and just less menu surfing overall.

Cons:

• Generally bigger and heavier.
  The SLR mirror box and pentaprism add some weight and bulk compared to a point-and-shoot's design. Other factors include heavier, more durable materials and the need for larger batteries to power higher-performance components.
  
  
• Increased Complexity. 
  Choosing and changing lenses while shooting may be more complicated for some folks.
  
• Higher Prices.
  The price range for SLR s are generally higher in the market.
   
• Much greater power consumption.
  Digital SLR batteries are bigger, more complex, and more expensive. Plus, keeping them charged and ready is a critical part of your photography routine.
• Larger and Bulkier.
  Many digital SLR s are bigger and heavier than similar film cameras, although a number of newer models have narrowed this gap.