Hey Yogesh,
Thanks for the suggestions.
To begin with I'm going to optimize the database and then reduce the posts on my home page to 5.
I've also removed the digg and stumble buttons I added recently as they were the most recent changes I've made to the blog.
If you have any other suggestions also please do let me know.
I'm gonna see how this goes before I try the supercache plugin as it looks complicated to setup.
A