EQ for a pair of subs

I'm looking at possibly adding a pair of SVS subs (possibly SB12s)to my 2-channel rig and wondering what works best to help integrate them while also being user friendly. I know Kal has written favorably about the XTZ system and that's high on my radar, but anything else in the sub-$1000 worth looking at?

Also, looks like a pair of SB12s would run around $1200 and seems like a pretty good deal. Do you guys think they're enough to get to a legitimate near full range sound in a medium-sized room or do I need to go bigger? Any others I should look at in this price range? Thanks for thoughts.