Try to avoid Dragon Age. I brought it, played it, enjoyed it (a bit). But at last, this was a not a good RPG game. It's most an ARPG than a RPG. There is no tactics, you just have to use the same tactic over and over : send a tank, use a healer on it, use a wizard to dps. There are just too much battles.
Anyway, if you just want to use your mouse, then you should try mount & blade: warband.
I leave you here, I have a castle siege to manage.
Dragon Age is a good break from traditional RPG though.
I love the story as well.
