I like the paradigm stuff, well engineered gear and always a good value for the $$$.
I have the active 20 monitors, now discontinued, I love em'. I' have also also been thinking about getting a sub to give these a bit more range as they tend to struggle a bit with bass heavy material (they are just a 2 way monitor w/ 6 1/2 inch woofer after all).
As far as getting the bass integrated, might be good to get an spl meter and a test tone CD to experiment with different room placements.
You can also try moving your furnishings around to make certain areas more absorptive or reflective as necessary, chairs, bookshelves, plants, etc...
Happy listening!
Ben