to answer the original quest: NO! not on this planet at least.
Well... to cut a long story short, I am looking into getting my hotshoe flash to recycle faster much faster during bursts. I am currently using a Metz 54MZ3 as my hotshoe flash.
I have heard off and seen people using 'power-packs' but when I ask around, it doesn't seem that many dealers carry such products anymore; some are claiming that, "People are now using rechargeable NiMH AA batteries, not those heavy power packs anymore". Can the NiMH AAs really replace the flash power packs?
OK, that hits the nail right on the head.
Just shows much of a newbie I am as far as photography is concerned.