The advice above on differentials is correct. One other note, please keep all log backups for all full backups. There is always a possibility that your latest full backup does not work and you go back two days to 8pm. Then you would restore all log backups since then.

I can only speak for Red Gate tools, but our SQL Backup supports object recovery and we have an Object Level Recovery tool. (http://www.red-gate.com/products/dba/sql-backup/). Disclosure, I work for Red Gate.