Just a quick bit of advice/warning about that too -- we programmer types love to obsess over the tiny details like picking the perfect blog theme, the best static site generator that will never need to change, debating minutiae like S3 vs self-hosted vs Wordpress, and on and on.

So my bit of advice is: none of that actually matters. Use the domain you have (sounds like you are!), pick the easiest platform to get started with, and write stuff. It's the writing stuff (and publishing it) that matters :)