I know this one, though 70$ is expensive ... there are tons of freeware and free demos (with limitation) out there that seems to do a decent job, so 70$ is not an option (already have a handheld scantool but it's limited).
A friend recommended ProScan and PCMScan, so I'm going to test them later today and see if I can find something else if these don't fit my needs!
damn ... wOBD is great if your car PIDs are the default ones in the software, or if you know your car PIDs ... I don't know my car PIDs so it's useless!
Next is ScanMaster (free version) and Digimoto Lite.