I've used both Drupal and Wordpress. Each system has virtues. But from what you say, it sounds like you're looking for something that is going to be small and

I've used both Drupal and Wordpress. Each system has virtues. But from what you say, it sounds like you're looking for something that is going to be small and you don't want to spend a much time maintaining it. So I'd recommend wordpress. If you're using a shared hosting service, there's a good chance they already have a one click installer with automatic updates for you. So you won't have to deal with installation and updating and you can get lots of great themes for under $100. If you do go this route, my only recommendation is that you avoid using third party modules to avoid any security issues. As long as you stick with WP core and you keep the overal size of your site down then you should be fine.