I fully agree with Trag's advice and can only supplement it by stating what I have said many times before: use the continuity check feature of your DMM to check trace integrity if your board isn't working right after you've changed the caps.

As for da9000's "God of perfection" remark, I can only say that I have replaced all the caps at once on two SE/30 boards without problem, and I do not have a Heavenly abode (not yet anyway). That doesn't mean one should not take care when doing a cap job. Indeed, I have mentioned that before when people say they don't have a tweezer style soldering tip (which I do have). Breaking traces is possible. But it's also not the end of the world. Again, use the continuity check feature of your DMM on the traces that attach to both sides of each cap, and trace them back to their origins. That's what I do to ensure a 100% fault proof cap job. Again, this is not "speculation." I've done two boards as have others on this site. Take care, but don't avoid doing the cap job. Most all SE/30's need to have a cap job done now as most of those SMD electrolytics have leaked (whether you can see the leakage or not).