Personally, I like having my computer on my right wrist, with my compass on the left. I started diving with a console, then found this site and decided to remove all the components from the boot. Wow, there was a lot of sand and salt residue in there! I added a bolt snap to the SPG (left hip), bungees to the compass and computer and voila! A setup where I felt more streamlined, a flick of the wrist to check my computer (not to mention that on ascent, I can vent my BC with my left while monitoring my depth from the right hand), and became a much more happy camper. Don't have to worry about all the salt and sand in the console boot, either.
On the flip side, it's been argued that wrist mounted stuff makes donning your gear harder, though all it takes is a bit of practice to get the technique right. Also, if your lobstering technique involves reaching your hand into crevices, wrist mount may not be a good thing.
It works for my diving, though.