The observant of you will have noticed that the site has sped up considerably over the last few days. This is because of a move to the wonderful VPS.net. Cloud hosting is the way of the future. A single hardware failure (like a hard disk) now cannot bring my site down. And I have better responsiveness than we were getting on a dedicated server which we were sharing with a few other sites.
Anybody with any further suggestions for me to futher improve or tweak the site, let me know. Also, if you are in the market for a new server host, then VPS.net is definitely worth a look.