Need Help on Easiest Software Testing Tool Available

Guys,

I'm really having a dilemma on what software testing tool will I recommend to our management for us, development team to use. What they desire from a test tool are the following:

1. Easy to maintain. That even non-technical people can create, read, update and delete test cases. Example of non-technical people are customer supports.

2. Open source or propriety software will do as long as criteria #1 can be satisfied.

3. The tool can perform automated functional and regression testing.

I've already tried to use Selenium WebDriver but it seems that they don't want it because it is too technical for them to write a code. I've tried Selenium IDE but some of the web elements that exist on our huge ERP-like legendary web application can't be detected.

I am the sole software tester in the team that consists of 20+ including support group. (10 devs+/-)

Please advise. Don't be shy to throw all your inputs regardless how little it may seem to you.

Thanks a lot guys.