I'd suggest not actually using a bug tracking system. They tend to be separate from actual planning and the fact that they're separate means that planning is harder.
I can't recommend pivotal tracker enough. It's not a full featured bug/issue tracker like JIRA, but I think that's what I love about it (I also only really use it for projects with up to about 4/5 people on them). The interface is super easy to learn, but works very well for both bugs and features. You do have to prescribe to an agile style development cycle to get the most out of it, but alternatively, you could just leave everything in the icebox.
We use Pivotal Tracker at work and it's just awesome! I can't believe it's free, it's so good. At my last job we were using some enterprising scrum management software and it was slow, clunky, and expensive (unless you used the free version, which we didn't because heck, we've got an IT budget to spend and we need that burndown report!)
Take a look at http://www.pivotaltracker.com/
The whole system is crazy simple/easy to use and it pretty much lets you do all your project management in one place.