ADVANTAGES only or both? 
ok i give u both. according to wat i know/experienced b4:
adv of DSLR over digicam:
- flexibility: able to buy different lenses to suit different
needs.
- lower noise at equivalent ISO (due to bigger sensors, NOT bigger
megapixels)
- MUCH BETTER auto focus speed and MUCH less shutter lag. i'll give
u an example of shutter lag: i was shooting hummingbirds at jbp,
framed my camera to wait for the bird to face me or look at me.
then when he did, i snapped, and guess wat? he's not in the frame!!
flew away already. that's what u call shutter lag, not to mention u
have to deal with reaction time as well.
- SHIOK rating is much higher when u feel the shutter slap and the
sound (but that's just a personal fetish of mine!) 
disadv of dslr over dc:
- price much higher. u dun just worree about ur body, u worree
about lenses, filters, TCs, extention tubes. investing in a SYSTEM
more than a camera
- big and heavy compared to digicams
- not able to use the LCD screen to take photos (very important for
many pple who like to frame using their screens, for me it doesn't
matter i use my viewfinder all the time)
eh.. i think that's all i can think of for now. 
