Taurus makes a very good pocket-size .44 Special, the Model 445. I have one in bright stainless with bobbed-hammer, and it carries very well in a blue jeans pocket for me--better than the published weight would indicate. I was really surprised about how well it did carry.
I haven't shot the Charter 2000 Bulldog, but I just traded-off the bobbed-hammer version of the Undercover (.38 Special). It was more than a little chinzy (though considering the price I shouldn't complain to much), had a few sharp edges (a problem), but the major problem it was unreliable--I had a lot of light primer strikes (not something I want in a carry gun). Again, this was not a Bulldog, but it was a new Charter 2000.
I've had a Ruger SP-101 which as somebody said is the Cadillac of the 5-shots--very accurate, easy to clean, and a good trigger pull (both DA and SA). It is definitely a holster gun though--it's just not meant to be carried in a pocket. I've also decided that for me the .357 Magnum is not viable choice for self-defence with short barrels. The muzzle blast and recovery time will be problem, but I could deal with that. What turned me off the .357 in this format were my perspective uses of the gun in the dark, in small enclosed spaces, etc. where the blast and flash would probably be debilitating to me and any of my family with me--picture yourself shooting one these INSIDE the cab of a pickup truck (car jack scenario) or in the stairwell of your home (home defence scenario).
As for the remark one poster made about energy levels, for these weapons at their velocities, at your talking about making holes not "transferring energy." Five (or ten with good penetration) .429 calibre holes are better choice than five .357 calibre holes--don't forget the .44 Special will deliver about a 60% larger crush cavity than a .357 round.