Have you checked out the deal announced on Ruby Weekly newsletter? It is a pretty good deal for New Relic.
Begin forwarded message:
1 Year of New Relic for 65% Off at AppSumo (for Thursday Only)
AppSumo is a 'daily deals' site for geeks and for today (Thursday) only, they're running a significant discount deal for an entire year of New Relic Standard service. New Relic is the leading performance management and app statistics system in the Ruby scene right now so it's worth checking out.