Background
In my company we started to use Basecamp for managing the project (mainly assigning work to developers). But unfortunately Basecamp on it's own doesn't have sufficient tools to track the bugs (the bug reports look like fairy tales missing crucial information).
I myself favor ClearQuest for bug tracking as a compromise between easy to use and feature richness.
Options - I found
I looked around for what can be used (integrates) with basecamp and found following:
1 and 2 are generally 15-30 USD per month for the minimalistic account. I'd prefer something for free.
The question
Do you have any other recommendation? Do you have experience with tools mentioned in 1 and 2?
We are small team (less than 10 persons). 100 issues shall be enough.