Seriously though, I'm running into a number of scaling issues which show that the Bitcoin daemon hasn't really been used in production (large wallet.dat) much. I'm afraid there isn't an over-night fix for this, so the site might be flaky over the next days/weeks until I can figure out some solutions and/or workarounds.
Thx for the encouragement. I'm glad it's useful to some people. Sorry about the downtime. I hope I can return to the previous level of stability once this growing pain is sorted out.