When I shoot - I use a DSLR. I am just not very happy with the P&S cameras with which I have shot (Olympus 2000Z, 5050Z and Nikon Coolpix 5400).
That said, however... I have recently converted an older Canon D60 (which is still a very nice camera) to full time Infrared. In retrospect, I wish that I had converted the Nikon Coolpix because when I am shooting with two DSLR cameras (17-55mm f/2.8 IS and 70-200mm f/4L IS lenses) it would be much easier to just slip the Coolpix in the pocket of my vest and I would have IR capability without carrying a third DSLR. On the other hand, I have a nice selection of lenses which fit Canon DSLR cameras and the D60 provides some good quality imagery.
The common reply to seeing me with a pair of cameras and lenses is, "No wonder you take such nice pictures - look at your equipment". I reply are you good cook because you own some good cookware?
I will usually carry 2 DSLR cameras with the above lenses. If I am shooting specialty stuff, like sports or nature, I will carry other lenses. Occasionally, very occasionally, I will carry a 30D and the 17-55mm f/2.8 IS lens alone. However, when I do; I usually miss the 70-200mm lens.
I carry the 30D and 17-55mm lens around my neck on an OPTECH strap and carry a 350D mounted with the 70-200mm lens in a Think-tank holster case at my side. I used to use a TAMRAC Zoom 19 holster case but, replaced it with the think tank model when I got my 300mm f/4L IS lens which didn't fit in the Zoom 19 but does fit in the Think tank by virtue of its expandable bottom.
Virtually all my shooting is "for fun" these days. I no longer have the stress of producing a commercially viable product although I do dabble in professional dog portraiture as a labor of love.