Japanese site
http://www.mars.dti.ne.jp/~ynar/bxorg_a ... /m07e.html
Its okay, but a not the greatest descriptions in the world. I'm pretty sure this would help as a reminder if you had done it before, or got a little stuck with the Haynes description.
French Car Forum
http://www.frenchcarforum.co.uk/forum/v ... php?t=9972
This is a 'Miracle' cure from AlanS. I have great issues with this guide, mostly in that the mod described is totally unnecessary and potentially dangerous. I certainly wouldn't like to be thinning out a 20mm bolt that holds the rear wheel onto the car, and i know that no stress analysis has ever been done on this method. Also the drilling of the bolt and support tube will induce a fail bit of stress into the system! This is the second miracle cure, and devised after the first miracle cure was deemed to be pointless!
Aussie Frogs
I can't find the Aussie Frogs guide of which you talk (and i'd like to add the link here if you can find it again). There was once long ago a very good straight forward simple guide by AlanS without any amazing miracle cures, but i can't find it. It was a pretty good guide.
As a general rule of thumb, if you do the job correctly and carefully, with the correct grease and shim the arm up correctly when fitting, then the bearings should last for a good 7 years/35,000 miles. Its not a difficult job once you get the hang of it, and i must have done 30+ arms by now on both BX and Xantia.
There is no need to disconnect the hydraulic line to the brakes, and i strongly recommend against this. If you disconnect the pipe or split the calipers then you will have to bleed out the brake lines, significantly increasing the time required to carry out the job! Simply unbolt the caliper and string it up out of the way (typically i run light string to the wiper arm).
Something else i dont see listed in these guides, Disconnect the ABS sensor from under the back seats FIRST!!!! I've come very close to mullering the sensor and only realising last minute that it was still attached.