When I'm on the lookout I just keep a link to the refurb page and visit it every half hour or so. New systems tend to appear in the mornings (Pacific Time) and can be gone very quickly. Keep your credit card in hand! I've bought my Mac minis and MacBooks and an Airport Extreme as refurbs and they have all been fine.
I found that refurb.me is often too sluggish to update, and their notification facility is worthless because of that. But it is good to get a general ideal of how often systems appear. iMacs don't seem to be much of a problem, but it can take weeks to snag a mini!
I found that refurb.me is often too sluggish to update, and their notification facility is worthless because of that. But it is good to get a general ideal of how often systems appear. iMacs don't seem to be much of a problem, but it can take weeks to snag a mini!