Newbie DCC Recommendation

[Southern Tuxedo]

I want to use DCC on my new HO guage switching layout which is under construction, but don’t know where to start. Slow speed operation and realistic sound for my diesel locomotives are both must haves. A wireless controller (I don’t know if I am calling it by the right name) has a lot of appeal, but may not be necessary. I would rather not start with a basic unit only to have to upgrade, I would prefer to get best unit for my purposes the first time.

If cost was no issue, what would you recommend and why?

If cost was a issue, what would you recommend and why?

Any help would be greatly appreciated.

Mark