If you're just interesting in combing through the logs, you might want to look at loggly.com Definitely give New Relic a try, they're pretty popular these days

If you're just interesting in combing through the logs, you might want to look at loggly.com Definitely give New Relic a try, they're pretty popular these days. Splunk is also an option, but is geared more for the enterprise. Might be overkill here. No matter what you choose, just remember to monitor your load closely, any of these kinds of additions can surprise you with the amount of processing-power they can take up.