Hints on changing drive belts

[Herd]

Hi
I own a Nissan Safari 1992 GQ WGY60 LWB, engine TB42 EFI. After a 2nd front brake hose burst ( just as my wife was stopping at a pedestrian crossing) I replaced the remaining 4 hoses. I've noticed the drive belts are cracked and frayed so will be replacing the 2 alternator, A/c and p/s belts this weekend. Can anyone give me any pointers about how to go about replacing the belts. E.g. do I need to remove the fan blade?

[mudtroll]

I got a TD42, have just removed all belts to fit a/c pump & alt. easy as no need to take fan out, all belts slip over it. I think the alternator is on the opposite side on a petrol motor? shouldn't make any difference.